1254656051 has 32 divisors (see below), whose sum is σ = 1497139200. Its totient is φ = 1038977280.

The previous prime is 1254656033. The next prime is 1254656059. The reversal of 1254656051 is 1506564521.

It is a de Polignac number, because none of the positive numbers 2^k-1254656051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1254656059) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 687326 + ... + 689148.

It is an arithmetic number, because the mean of its divisors is an integer number (46785600).

Almost surely, 2^1254656051 is an apocalyptic number.

1254656051 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1254656051 is a deficient number, since it is larger than the sum of its proper divisors (242483149).

1254656051 is a wasteful number, since it uses less digits than its factorization.

1254656051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1979.

The product of its (nonzero) digits is 36000, while the sum is 35.

The square root of 1254656051 is about 35421.1243610363. The cubic root of 1254656051 is about 1078.5531755067.

The spelling of 1254656051 in words is "one billion, two hundred fifty-four million, six hundred fifty-six thousand, fifty-one".