1252071489 has 16 divisors (see below), whose sum is σ = 1711563840. Its totient is φ = 813680640.

The previous prime is 1252071487. The next prime is 1252071533. The reversal of 1252071489 is 9841702521.

It is not a de Polignac number, because 1252071489 - 2¹ = 1252071487 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1252071487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175969 + ... + 182945.

It is an arithmetic number, because the mean of its divisors is an integer number (106972740).

Almost surely, 2^1252071489 is an apocalyptic number.

It is an amenable number.

1252071489 is a deficient number, since it is larger than the sum of its proper divisors (459492351).

1252071489 is a wasteful number, since it uses less digits than its factorization.

1252071489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8480.

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 1252071489 is about 35384.6222107853. The cubic root of 1252071489 is about 1077.8120683150.

The spelling of 1252071489 in words is "one billion, two hundred fifty-two million, seventy-one thousand, four hundred eighty-nine".