971132155 has 16 divisors (see below), whose sum is σ = 1367835840. Its totient is φ = 647920512.

The previous prime is 971132143. The next prime is 971132159. The reversal of 971132155 is 551231179.

It is a cyclic number.

It is not a de Polignac number, because 971132155 - 2⁹ = 971131643 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 971132155.

It is not an unprimeable number, because it can be changed into a prime (971132159) 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, 373660 + ... + 376249.

It is an arithmetic number, because the mean of its divisors is an integer number (85489740).

Almost surely, 2^971132155 is an apocalyptic number.

971132155 is a deficient number, since it is larger than the sum of its proper divisors (396703685).

971132155 is a wasteful number, since it uses less digits than its factorization.

971132155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749958.

The product of its digits is 9450, while the sum is 34.

The square root of 971132155 is about 31162.9933575066. The cubic root of 971132155 is about 990.2832760768.

The spelling of 971132155 in words is "nine hundred seventy-one million, one hundred thirty-two thousand, one hundred fifty-five".