1252751379 has 32 divisors (see below), whose sum is σ = 1883236608. Its totient is φ = 734160000.

The previous prime is 1252751363. The next prime is 1252751387. The reversal of 1252751379 is 9731572521.

It is not a de Polignac number, because 1252751379 - 2⁴ = 1252751363 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1252751379.

It is not an unprimeable number, because it can be changed into a prime (1252751329) 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, 138949 + ... + 147689.

It is an arithmetic number, because the mean of its divisors is an integer number (58851144).

Almost surely, 2^1252751379 is an apocalyptic number.

1252751379 is a deficient number, since it is larger than the sum of its proper divisors (630485229).

1252751379 is a wasteful number, since it uses less digits than its factorization.

1252751379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8899.

The product of its digits is 132300, while the sum is 42.

The square root of 1252751379 is about 35394.2280463920. The cubic root of 1252751379 is about 1078.0071213544.

The spelling of 1252751379 in words is "one billion, two hundred fifty-two million, seven hundred fifty-one thousand, three hundred seventy-nine".