97225731 has 24 divisors (see below), whose sum is σ = 145890480. Its totient is φ = 63993600.

The previous prime is 97225673. The next prime is 97225741. The reversal of 97225731 is 13752279.

It is not a de Polignac number, because 97225731 - 2¹⁴ = 97209347 is a prime.

It is a super-2 number, since 2×97225731² = 18905685536968722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (97225741) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 275251 + ... + 275603.

It is an arithmetic number, because the mean of its divisors is an integer number (6078770).

Almost surely, 2^97225731 is an apocalyptic number.

97225731 is a deficient number, since it is larger than the sum of its proper divisors (48664749).

97225731 is a wasteful number, since it uses less digits than its factorization.

97225731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564 (or 457 counting only the distinct ones).

The product of its digits is 26460, while the sum is 36.

The square root of 97225731 is about 9860.3108977354. The cubic root of 97225731 is about 459.8262276837.

The spelling of 97225731 in words is "ninety-seven million, two hundred twenty-five thousand, seven hundred thirty-one".