1252511479 has 8 divisors (see below), whose sum is σ = 1307592000. Its totient is φ = 1198223712.

The previous prime is 1252511461. The next prime is 1252511489. The reversal of 1252511479 is 9741152521.

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

It is a cyclic number.

It is not a de Polignac number, because 1252511479 - 2⁹ = 1252510967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1252511459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194959 + ... + 201280.

It is an arithmetic number, because the mean of its divisors is an integer number (163449000).

Almost surely, 2^1252511479 is an apocalyptic number.

1252511479 is a deficient number, since it is larger than the sum of its proper divisors (55080521).

1252511479 is a wasteful number, since it uses less digits than its factorization.

1252511479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396377.

The product of its digits is 25200, while the sum is 37.

The square root of 1252511479 is about 35390.8389134816. The cubic root of 1252511479 is about 1077.9383047154.

The spelling of 1252511479 in words is "one billion, two hundred fifty-two million, five hundred eleven thousand, four hundred seventy-nine".