971181345 has 32 divisors (see below), whose sum is σ = 1569775104. Its totient is φ = 512697600.

The previous prime is 971181331. The next prime is 971181373. The reversal of 971181345 is 543181179.

It is not a de Polignac number, because 971181345 - 2⁵ = 971181313 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 702555 + ... + 703935.

It is an arithmetic number, because the mean of its divisors is an integer number (49055472).

Almost surely, 2^971181345 is an apocalyptic number.

It is an amenable number.

971181345 is a deficient number, since it is larger than the sum of its proper divisors (598593759).

971181345 is a wasteful number, since it uses less digits than its factorization.

971181345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1833.

The product of its digits is 30240, while the sum is 39.

The square root of 971181345 is about 31163.7825849174. The cubic root of 971181345 is about 990.2999958101.

The spelling of 971181345 in words is "nine hundred seventy-one million, one hundred eighty-one thousand, three hundred forty-five".