264401507 has 2 divisors, whose sum is σ = 264401508. Its totient is φ = 264401506.

The previous prime is 264401483. The next prime is 264401513. The reversal of 264401507 is 705104462.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 264401507 - 2²⁴ = 247624291 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 264401507.

It is not a weakly prime, because it can be changed into another prime (264401567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132200753 + 132200754.

It is an arithmetic number, because the mean of its divisors is an integer number (132200754).

Almost surely, 2^264401507 is an apocalyptic number.

264401507 is a deficient number, since it is larger than the sum of its proper divisors (1).

264401507 is an equidigital number, since it uses as much as digits as its factorization.

264401507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 264401507 is about 16260.4276389030. The cubic root of 264401507 is about 641.8319152817.

Adding to 264401507 its reverse (705104462), we get a palindrome (969505969).

The spelling of 264401507 in words is "two hundred sixty-four million, four hundred one thousand, five hundred seven".