1264237025 has 6 divisors (see below), whose sum is σ = 1567653942. Its totient is φ = 1011389600.

The previous prime is 1264237019. The next prime is 1264237027. The reversal of 1264237025 is 5207324621.

It can be written as a sum of positive squares in 3 ways, for example, as 14190289 + 1250046736 = 3767^2 + 35356^2 .

It is not a de Polignac number, because 1264237025 - 2²⁰ = 1263188449 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1264236982 and 1264237000.

It is not an unprimeable number, because it can be changed into a prime (1264237027) 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 in 5 ways as a sum of consecutive naturals, for example, 25284716 + ... + 25284765.

It is an arithmetic number, because the mean of its divisors is an integer number (261275657).

Almost surely, 2^1264237025 is an apocalyptic number.

It is an amenable number.

1264237025 is a deficient number, since it is larger than the sum of its proper divisors (303416917).

1264237025 is an equidigital number, since it uses as much as digits as its factorization.

1264237025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50569491 (or 50569486 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 1264237025 is about 35556.1109375027. The cubic root of 1264237025 is about 1081.2916145566.

The spelling of 1264237025 in words is "one billion, two hundred sixty-four million, two hundred thirty-seven thousand, twenty-five".