1252501387 has 8 divisors (see below), whose sum is σ = 1299121200. Its totient is φ = 1206110304.

The previous prime is 1252501309. The next prime is 1252501399. The reversal of 1252501387 is 7831052521.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1252501387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1252501487) 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, 45988 + ... + 67969.

It is an arithmetic number, because the mean of its divisors is an integer number (162390150).

Almost surely, 2^1252501387 is an apocalyptic number.

1252501387 is a deficient number, since it is larger than the sum of its proper divisors (46619813).

1252501387 is a wasteful number, since it uses less digits than its factorization.

1252501387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114365.

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 1252501387 is about 35390.6963339237. The cubic root of 1252501387 is about 1077.9354095769.

The spelling of 1252501387 in words is "one billion, two hundred fifty-two million, five hundred one thousand, three hundred eighty-seven".