31055047 has 2 divisors, whose sum is σ = 31055048. Its totient is φ = 31055046.

The previous prime is 31055041. The next prime is 31055053. The reversal of 31055047 is 74055013.

It is a balanced prime because it is at equal distance from previous prime (31055041) and next prime (31055053).

It is a cyclic number.

It is not a de Polignac number, because 31055047 - 2¹⁵ = 31022279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31055041) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15527523 + 15527524.

It is an arithmetic number, because the mean of its divisors is an integer number (15527524).

Almost surely, 2^31055047 is an apocalyptic number.

31055047 is a deficient number, since it is larger than the sum of its proper divisors (1).

31055047 is an equidigital number, since it uses as much as digits as its factorization.

31055047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 31055047 is about 5572.7055368106. The cubic root of 31055047 is about 314.3238946237.

The spelling of 31055047 in words is "thirty-one million, fifty-five thousand, forty-seven".