31161027 has 8 divisors (see below), whose sum is σ = 42252480. Its totient is φ = 20421800.

The previous prime is 31161019. The next prime is 31161041. The reversal of 31161027 is 72016113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31161027 - 2³ = 31161019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31160994 and 31161012.

It is not an unprimeable number, because it can be changed into a prime (31160027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87849 + ... + 88202.

It is an arithmetic number, because the mean of its divisors is an integer number (5281560).

Almost surely, 2^31161027 is an apocalyptic number.

31161027 is a deficient number, since it is larger than the sum of its proper divisors (11091453).

31161027 is a wasteful number, since it uses less digits than its factorization.

31161027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176113.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 31161027 is about 5582.2062842571. The cubic root of 31161027 is about 314.6810477773.

The spelling of 31161027 in words is "thirty-one million, one hundred sixty-one thousand, twenty-seven".