1252101651 has 8 divisors (see below), whose sum is σ = 1727036880. Its totient is φ = 805950432.

The previous prime is 1252101581. The next prime is 1252101661. The reversal of 1252101651 is 1561012521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1252101651 - 2⁷ = 1252101523 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1252101661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7195900 + ... + 7196073.

It is an arithmetic number, because the mean of its divisors is an integer number (215879610).

Almost surely, 2^1252101651 is an apocalyptic number.

1252101651 is a deficient number, since it is larger than the sum of its proper divisors (474935229).

1252101651 is a wasteful number, since it uses less digits than its factorization.

1252101651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14392005.

The product of its (nonzero) digits is 600, while the sum is 24.

The square root of 1252101651 is about 35385.0484103103. The cubic root of 1252101651 is about 1077.8207229610.

The spelling of 1252101651 in words is "one billion, two hundred fifty-two million, one hundred one thousand, six hundred fifty-one".