97745137 has 8 divisors (see below), whose sum is σ = 112211456. Its totient is φ = 83404512.

The previous prime is 97745129. The next prime is 97745171. The reversal of 97745137 is 73154779.

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 97745137 - 2³ = 97745129 is a prime.

It is a super-2 number, since 2×97745137² = 19108223614297538, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 97745093 and 97745102.

It is not an unprimeable number, because it can be changed into a prime (97745737) 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, 29748 + ... + 32869.

It is an arithmetic number, because the mean of its divisors is an integer number (14026432).

Almost surely, 2^97745137 is an apocalyptic number.

It is an amenable number.

97745137 is a deficient number, since it is larger than the sum of its proper divisors (14466319).

97745137 is a wasteful number, since it uses less digits than its factorization.

97745137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62847.

The product of its digits is 185220, while the sum is 43.

The square root of 97745137 is about 9886.6140311029. The cubic root of 97745137 is about 460.6436122978.

The spelling of 97745137 in words is "ninety-seven million, seven hundred forty-five thousand, one hundred thirty-seven".