97144515 has 40 divisors (see below), whose sum is σ = 187546128. Its totient is φ = 47822400.

The previous prime is 97144507. The next prime is 97144547. The reversal of 97144515 is 51544179.

It is not a de Polignac number, because 97144515 - 2³ = 97144507 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 97144515.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3961 + ... + 14490.

Almost surely, 2^97144515 is an apocalyptic number.

97144515 is a deficient number, since it is larger than the sum of its proper divisors (90401613).

97144515 is a wasteful number, since it uses less digits than its factorization.

97144515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18481 (or 18472 counting only the distinct ones).

The product of its digits is 25200, while the sum is 36.

The square root of 97144515 is about 9856.1917087687. The cubic root of 97144515 is about 459.6981557905.

The spelling of 97144515 in words is "ninety-seven million, one hundred forty-four thousand, five hundred fifteen".