1264210531 has 2 divisors, whose sum is σ = 1264210532. Its totient is φ = 1264210530.

The previous prime is 1264210529. The next prime is 1264210553. The reversal of 1264210531 is 1350124621.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1264210531 - 2¹ = 1264210529 is a prime.

It is a super-2 number, since 2×1264210531² = 3196456533382603922, which contains 22 as substring.

Together with 1264210529, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1264210496 and 1264210505.

It is not a weakly prime, because it can be changed into another prime (1264210331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 632105265 + 632105266.

It is an arithmetic number, because the mean of its divisors is an integer number (632105266).

Almost surely, 2^1264210531 is an apocalyptic number.

1264210531 is a deficient number, since it is larger than the sum of its proper divisors (1).

1264210531 is an equidigital number, since it uses as much as digits as its factorization.

1264210531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 1264210531 is about 35555.7383694953. The cubic root of 1264210531 is about 1081.2840611365.

The spelling of 1264210531 in words is "one billion, two hundred sixty-four million, two hundred ten thousand, five hundred thirty-one".