31053977 has 2 divisors, whose sum is σ = 31053978. Its totient is φ = 31053976.

The previous prime is 31053959. The next prime is 31054021. The reversal of 31053977 is 77935013.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24314761 + 6739216 = 4931^2 + 2596^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31053977 is a prime.

It is not a weakly prime, because it can be changed into another prime (31053947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15526988 + 15526989.

It is an arithmetic number, because the mean of its divisors is an integer number (15526989).

Almost surely, 2^31053977 is an apocalyptic number.

It is an amenable number.

31053977 is a deficient number, since it is larger than the sum of its proper divisors (1).

31053977 is an equidigital number, since it uses as much as digits as its factorization.

31053977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19845, while the sum is 35.

The square root of 31053977 is about 5572.6095323466. The cubic root of 31053977 is about 314.3202845778.

The spelling of 31053977 in words is "thirty-one million, fifty-three thousand, nine hundred seventy-seven".