1264425613 has 16 divisors (see below), whose sum is σ = 1427830272. Its totient is φ = 1109304000.

The previous prime is 1264425601. The next prime is 1264425619. The reversal of 1264425613 is 3165244621.

It is not a de Polignac number, because 1264425613 - 2¹³ = 1264417421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1264425619) 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 15 ways as a sum of consecutive naturals, for example, 122223 + ... + 132163.

It is an arithmetic number, because the mean of its divisors is an integer number (89239392).

Almost surely, 2^1264425613 is an apocalyptic number.

It is an amenable number.

1264425613 is a deficient number, since it is larger than the sum of its proper divisors (163404659).

1264425613 is a wasteful number, since it uses less digits than its factorization.

1264425613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10356.

The product of its digits is 34560, while the sum is 34.

The square root of 1264425613 is about 35558.7628159361. The cubic root of 1264425613 is about 1081.3453778094.

The spelling of 1264425613 in words is "one billion, two hundred sixty-four million, four hundred twenty-five thousand, six hundred thirteen".