1264319025 has 12 divisors (see below), whose sum is σ = 2090340912. Its totient is φ = 674303440.

The previous prime is 1264318969. The next prime is 1264319027. The reversal of 1264319025 is 5209134621.

It is not a de Polignac number, because 1264319025 - 2¹³ = 1264310833 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1264319027) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8428719 + ... + 8428868.

It is an arithmetic number, because the mean of its divisors is an integer number (174195076).

Almost surely, 2^1264319025 is an apocalyptic number.

1264319025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1264319025 is a deficient number, since it is larger than the sum of its proper divisors (826021887).

1264319025 is a wasteful number, since it uses less digits than its factorization.

1264319025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16857600 (or 16857595 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 1264319025 is about 35557.2640257937. The cubic root of 1264319025 is about 1081.3149920282.

The spelling of 1264319025 in words is "one billion, two hundred sixty-four million, three hundred nineteen thousand, twenty-five".