137244399 has 8 divisors (see below), whose sum is σ = 183521280. Its totient is φ = 91231896.

The previous prime is 137244397. The next prime is 137244403. The reversal of 137244399 is 993442731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 137244399 - 2¹ = 137244397 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 137244399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137244397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64879 + ... + 66960.

It is an arithmetic number, because the mean of its divisors is an integer number (22940160).

Almost surely, 2^137244399 is an apocalyptic number.

137244399 is a deficient number, since it is larger than the sum of its proper divisors (46276881).

137244399 is a wasteful number, since it uses less digits than its factorization.

137244399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132189.

The product of its digits is 163296, while the sum is 42.

The square root of 137244399 is about 11715.1354665663. The cubic root of 137244399 is about 515.8200389504.

The spelling of 137244399 in words is "one hundred thirty-seven million, two hundred forty-four thousand, three hundred ninety-nine".