264391051 has 2 divisors, whose sum is σ = 264391052. Its totient is φ = 264391050.

The previous prime is 264391037. The next prime is 264391067. The reversal of 264391051 is 150193462.

264391051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 264391051 - 2⁷ = 264390923 is a prime.

It is not a weakly prime, because it can be changed into another prime (264391031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132195525 + 132195526.

It is an arithmetic number, because the mean of its divisors is an integer number (132195526).

Almost surely, 2^264391051 is an apocalyptic number.

264391051 is a deficient number, since it is larger than the sum of its proper divisors (1).

264391051 is an equidigital number, since it uses as much as digits as its factorization.

264391051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 264391051 is about 16260.1061189649. The cubic root of 264391051 is about 641.8234545597.

The spelling of 264391051 in words is "two hundred sixty-four million, three hundred ninety-one thousand, fifty-one".