137817697 has 8 divisors (see below), whose sum is σ = 146568800. Its totient is φ = 129216384.

The previous prime is 137817689. The next prime is 137817707. The reversal of 137817697 is 796718731.

137817697 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 137817697 - 2³ = 137817689 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 137817697.

It is not an unprimeable number, because it can be changed into a prime (137817607) 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, 35547 + ... + 39232.

It is an arithmetic number, because the mean of its divisors is an integer number (18321100).

Almost surely, 2^137817697 is an apocalyptic number.

It is an amenable number.

137817697 is a deficient number, since it is larger than the sum of its proper divisors (8751103).

137817697 is an equidigital number, since it uses as much as digits as its factorization.

137817697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74895.

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

The square root of 137817697 is about 11739.5782292210. The cubic root of 137817697 is about 516.5372698967.

The spelling of 137817697 in words is "one hundred thirty-seven million, eight hundred seventeen thousand, six hundred ninety-seven".