31179061 has 2 divisors, whose sum is σ = 31179062. Its totient is φ = 31179060.

The previous prime is 31179041. The next prime is 31179077. The reversal of 31179061 is 16097113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16966161 + 14212900 = 4119^2 + 3770^2 .

It is a cyclic number.

It is not a de Polignac number, because 31179061 - 2¹⁵ = 31146293 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31179041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15589530 + 15589531.

It is an arithmetic number, because the mean of its divisors is an integer number (15589531).

Almost surely, 2^31179061 is an apocalyptic number.

It is an amenable number.

31179061 is a deficient number, since it is larger than the sum of its proper divisors (1).

31179061 is an equidigital number, since it uses as much as digits as its factorization.

31179061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134, while the sum is 28.

The square root of 31179061 is about 5583.8213617558. The cubic root of 31179061 is about 314.7417417931.

The spelling of 31179061 in words is "thirty-one million, one hundred seventy-nine thousand, sixty-one".