97144931 has 16 divisors (see below), whose sum is σ = 106437408. Its totient is φ = 88128000.

The previous prime is 97144921. The next prime is 97144937. The reversal of 97144931 is 13944179.

It is a cyclic number.

It is not a de Polignac number, because 97144931 - 2¹⁴ = 97128547 is a prime.

It is a super-2 number, since 2×97144931² = 18874275237989522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97144937) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 316280 + ... + 316586.

It is an arithmetic number, because the mean of its divisors is an integer number (6652338).

Almost surely, 2^97144931 is an apocalyptic number.

97144931 is a deficient number, since it is larger than the sum of its proper divisors (9292477).

97144931 is a wasteful number, since it uses less digits than its factorization.

97144931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662.

The product of its digits is 27216, while the sum is 38.

The square root of 97144931 is about 9856.2128122317. The cubic root of 97144931 is about 459.6988119749.

The spelling of 97144931 in words is "ninety-seven million, one hundred forty-four thousand, nine hundred thirty-one".