1254747864 has 32 divisors (see below), whose sum is σ = 3196059120. Its totient is φ = 410357376.

The previous prime is 1254747863. The next prime is 1254747919. The reversal of 1254747864 is 4687474521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1254747863) 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 7 ways as a sum of consecutive naturals, for example, 491947 + ... + 494490.

Almost surely, 2^1254747864 is an apocalyptic number.

It is an amenable number.

1254747864 is an abundant number, since it is smaller than the sum of its proper divisors (1941311256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1254747864 is a wasteful number, since it uses less digits than its factorization.

1254747864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986499 (or 986495 counting only the distinct ones).

The product of its digits is 1505280, while the sum is 48.

The square root of 1254747864 is about 35422.4203577339. The cubic root of 1254747864 is about 1078.5794835899.

The spelling of 1254747864 in words is "one billion, two hundred fifty-four million, seven hundred forty-seven thousand, eight hundred sixty-four".