264402031 has 2 divisors, whose sum is σ = 264402032. Its totient is φ = 264402030.

The previous prime is 264402023. The next prime is 264402041. The reversal of 264402031 is 130204462.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 264402031 - 2³ = 264402023 is a prime.

It is a super-2 number, since 2×264402031² = 139816867993849922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 264401993 and 264402011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (264402011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132201015 + 132201016.

It is an arithmetic number, because the mean of its divisors is an integer number (132201016).

Almost surely, 2^264402031 is an apocalyptic number.

264402031 is a deficient number, since it is larger than the sum of its proper divisors (1).

264402031 is an equidigital number, since it uses as much as digits as its factorization.

264402031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 264402031 is about 16260.4437516324. The cubic root of 264402031 is about 641.8323392829.

Adding to 264402031 its reverse (130204462), we get a palindrome (394606493).

The spelling of 264402031 in words is "two hundred sixty-four million, four hundred two thousand, thirty-one".