971256195 has 144 divisors (see below), whose sum is σ = 2179037952. Its totient is φ = 396264960.

The previous prime is 971256173. The next prime is 971256229. The reversal of 971256195 is 591652179.

971256195 is a `hidden beast` number, since 9 + 7 + 1 + 25 + 619 + 5 = 666.

It is not a de Polignac number, because 971256195 - 2⁷ = 971256067 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 971256195.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 888069 + ... + 889161.

It is an arithmetic number, because the mean of its divisors is an integer number (15132208).

Almost surely, 2^971256195 is an apocalyptic number.

971256195 is an abundant number, since it is smaller than the sum of its proper divisors (1207781757).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

971256195 is a wasteful number, since it uses less digits than its factorization.

971256195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1162 (or 1152 counting only the distinct ones).

The product of its digits is 170100, while the sum is 45.

The square root of 971256195 is about 31164.9834750478. The cubic root of 971256195 is about 990.3254363216.

The spelling of 971256195 in words is "nine hundred seventy-one million, two hundred fifty-six thousand, one hundred ninety-five".