137697542 has 16 divisors (see below), whose sum is σ = 211551264. Its totient is φ = 67200000.

The previous prime is 137697533. The next prime is 137697559. The reversal of 137697542 is 245796731.

It is a super-2 number, since 2×137697542² = 37921226145683528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 137697493 and 137697502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9542 + ... + 19142.

It is an arithmetic number, because the mean of its divisors is an integer number (13221954).

Almost surely, 2^137697542 is an apocalyptic number.

137697542 is a deficient number, since it is larger than the sum of its proper divisors (73853722).

137697542 is a wasteful number, since it uses less digits than its factorization.

137697542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9775.

The product of its digits is 317520, while the sum is 44.

The square root of 137697542 is about 11734.4595955672. The cubic root of 137697542 is about 516.3871136093.

The spelling of 137697542 in words is "one hundred thirty-seven million, six hundred ninety-seven thousand, five hundred forty-two".