97251537 has 8 divisors (see below), whose sum is σ = 129790080. Its totient is φ = 64773680.

The previous prime is 97251533. The next prime is 97251541. The reversal of 97251537 is 73515279.

It is an interprime number because it is at equal distance from previous prime (97251533) and next prime (97251541).

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 97251537 - 2² = 97251533 is a prime.

It is a super-2 number, since 2×97251537² = 18915722897724738, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 97251495 and 97251504.

It is not an unprimeable number, because it can be changed into a prime (97251533) 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, 11289 + ... + 17942.

It is an arithmetic number, because the mean of its divisors is an integer number (16223760).

Almost surely, 2^97251537 is an apocalyptic number.

It is an amenable number.

97251537 is a deficient number, since it is larger than the sum of its proper divisors (32538543).

97251537 is a wasteful number, since it uses less digits than its factorization.

97251537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30343.

The product of its digits is 66150, while the sum is 39.

The square root of 97251537 is about 9861.6193903436. The cubic root of 97251537 is about 459.8669069902.

The spelling of 97251537 in words is "ninety-seven million, two hundred fifty-one thousand, five hundred thirty-seven".