1252556146 has 16 divisors (see below), whose sum is σ = 1900088640. Its totient is φ = 619210800.

The previous prime is 1252556143. The next prime is 1252556167. The reversal of 1252556146 is 6416552521.

It is not an unprimeable number, because it can be changed into a prime (1252556143) 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, 155035 + ... + 162913.

It is an arithmetic number, because the mean of its divisors is an integer number (118755540).

Almost surely, 2^1252556146 is an apocalyptic number.

1252556146 is a deficient number, since it is larger than the sum of its proper divisors (647532494).

1252556146 is a wasteful number, since it uses less digits than its factorization.

1252556146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8769.

The product of its digits is 72000, while the sum is 37.

The square root of 1252556146 is about 35391.4699609948. The cubic root of 1252556146 is about 1077.9511183565.

The spelling of 1252556146 in words is "one billion, two hundred fifty-two million, five hundred fifty-six thousand, one hundred forty-six".