137797816 has 16 divisors (see below), whose sum is σ = 278245800. Its totient is φ = 63598944.

The previous prime is 137797813. The next prime is 137797817. The reversal of 137797816 is 618797731.

It is a self number, because there is not a number n which added to its sum of digits gives 137797816.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137797811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 662386 + ... + 662593.

Almost surely, 2^137797816 is an apocalyptic number.

It is an amenable number.

137797816 is an abundant number, since it is smaller than the sum of its proper divisors (140447984).

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

137797816 is a wasteful number, since it uses less digits than its factorization.

137797816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1324998 (or 1324994 counting only the distinct ones).

The product of its digits is 444528, while the sum is 49.

The square root of 137797816 is about 11738.7314476480. The cubic root of 137797816 is about 516.5124308726.

The spelling of 137797816 in words is "one hundred thirty-seven million, seven hundred ninety-seven thousand, eight hundred sixteen".