97015147 has 4 divisors (see below), whose sum is σ = 99637216. Its totient is φ = 94393080.

The previous prime is 97015111. The next prime is 97015153. The reversal of 97015147 is 74151079.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97015147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97015157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1310979 + ... + 1311052.

It is an arithmetic number, because the mean of its divisors is an integer number (24909304).

Almost surely, 2^97015147 is an apocalyptic number.

97015147 is a deficient number, since it is larger than the sum of its proper divisors (2622069).

97015147 is a wasteful number, since it uses less digits than its factorization.

97015147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2622068.

The product of its (nonzero) digits is 8820, while the sum is 34.

The square root of 97015147 is about 9849.6267441970. The cubic root of 97015147 is about 459.4940041046.

The spelling of 97015147 in words is "ninety-seven million, fifteen thousand, one hundred forty-seven".