1252589437 has 8 divisors (see below), whose sum is σ = 1382925600. Its totient is φ = 1124997360.

The previous prime is 1252589419. The next prime is 1252589479. The reversal of 1252589437 is 7349852521.

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 1252589437 - 2¹¹ = 1252587389 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 (1252509437) 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, 685062 + ... + 686887.

It is an arithmetic number, because the mean of its divisors is an integer number (172865700).

Almost surely, 2^1252589437 is an apocalyptic number.

It is an amenable number.

1252589437 is a deficient number, since it is larger than the sum of its proper divisors (130336163).

1252589437 is a wasteful number, since it uses less digits than its factorization.

1252589437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1372043.

The product of its digits is 604800, while the sum is 46.

The square root of 1252589437 is about 35391.9402830644. The cubic root of 1252589437 is about 1077.9606683616.

The spelling of 1252589437 in words is "one billion, two hundred fifty-two million, five hundred eighty-nine thousand, four hundred thirty-seven".