137699244 has 96 divisors (see below), whose sum is σ = 369600000. Its totient is φ = 44307648.

The previous prime is 137699231. The next prime is 137699249. The reversal of 137699244 is 442996731.

It is a happy number.

137699244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×137699244² = 37922163596343072, which contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 137699244.

It is not an unprimeable number, because it can be changed into a prime (137699249) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 691857 + ... + 692055.

It is an arithmetic number, because the mean of its divisors is an integer number (3850000).

Almost surely, 2^137699244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 137699244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184800000).

137699244 is an abundant number, since it is smaller than the sum of its proper divisors (231900756).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

137699244 is a wasteful number, since it uses less digits than its factorization.

137699244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404 (or 396 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 137699244 is about 11734.5321167910. The cubic root of 137699244 is about 516.3892411884.

The spelling of 137699244 in words is "one hundred thirty-seven million, six hundred ninety-nine thousand, two hundred forty-four".