197374945 has 24 divisors (see below), whose sum is σ = 255885696. Its totient is φ = 146053152.

The previous prime is 197374939. The next prime is 197374951. The reversal of 197374945 is 549473791.

It is an interprime number because it is at equal distance from previous prime (197374939) and next prime (197374951).

It is a de Polignac number, because none of the positive numbers 2^k-197374945 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76344 + ... + 78886.

It is an arithmetic number, because the mean of its divisors is an integer number (10661904).

Almost surely, 2^197374945 is an apocalyptic number.

It is an amenable number.

197374945 is a deficient number, since it is larger than the sum of its proper divisors (58510751).

197374945 is a wasteful number, since it uses less digits than its factorization.

197374945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2629 (or 2610 counting only the distinct ones).

The product of its digits is 952560, while the sum is 49.

The square root of 197374945 is about 14049.0193607953. The cubic root of 197374945 is about 582.2337021946.

The spelling of 197374945 in words is "one hundred ninety-seven million, three hundred seventy-four thousand, nine hundred forty-five".