31264043 has 2 divisors, whose sum is σ = 31264044. Its totient is φ = 31264042.

The previous prime is 31264039. The next prime is 31264073. The reversal of 31264043 is 34046213.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31264043 - 2² = 31264039 is a prime.

It is not a weakly prime, because it can be changed into another prime (31264033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15632021 + 15632022.

It is an arithmetic number, because the mean of its divisors is an integer number (15632022).

Almost surely, 2^31264043 is an apocalyptic number.

31264043 is a deficient number, since it is larger than the sum of its proper divisors (1).

31264043 is an equidigital number, since it uses as much as digits as its factorization.

31264043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 31264043 is about 5591.4258467765. The cubic root of 31264043 is about 315.0274369315.

The spelling of 31264043 in words is "thirty-one million, two hundred sixty-four thousand, forty-three".