1264572851 has 2 divisors, whose sum is σ = 1264572852. Its totient is φ = 1264572850.

The previous prime is 1264572847. The next prime is 1264572871. The reversal of 1264572851 is 1582754621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1264572851 - 2² = 1264572847 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1264572799 and 1264572808.

It is not a weakly prime, because it can be changed into another prime (1264572871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 632286425 + 632286426.

It is an arithmetic number, because the mean of its divisors is an integer number (632286426).

Almost surely, 2^1264572851 is an apocalyptic number.

1264572851 is a deficient number, since it is larger than the sum of its proper divisors (1).

1264572851 is an equidigital number, since it uses as much as digits as its factorization.

1264572851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 134400, while the sum is 41.

The square root of 1264572851 is about 35560.8331032894. The cubic root of 1264572851 is about 1081.3873491597.

The spelling of 1264572851 in words is "one billion, two hundred sixty-four million, five hundred seventy-two thousand, eight hundred fifty-one".