1264825149 has 16 divisors (see below), whose sum is σ = 1930027008. Its totient is φ = 721754352.

The previous prime is 1264825147. The next prime is 1264825153. The reversal of 1264825149 is 9415284621.

It is not a de Polignac number, because 1264825149 - 2¹ = 1264825147 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1264825149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1264825147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26157 + ... + 56690.

It is an arithmetic number, because the mean of its divisors is an integer number (120626688).

Almost surely, 2^1264825149 is an apocalyptic number.

It is an amenable number.

1264825149 is a deficient number, since it is larger than the sum of its proper divisors (665201859).

1264825149 is an equidigital number, since it uses as much as digits as its factorization.

1264825149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83584.

The product of its digits is 138240, while the sum is 42.

The square root of 1264825149 is about 35564.3803404474. The cubic root of 1264825149 is about 1081.4592611160.

The spelling of 1264825149 in words is "one billion, two hundred sixty-four million, eight hundred twenty-five thousand, one hundred forty-nine".