1142615631 has 16 divisors (see below), whose sum is σ = 1595980800. Its totient is φ = 726162528.

The previous prime is 1142615609. The next prime is 1142615647. The reversal of 1142615631 is 1365162411.

It is a happy number.

1142615631 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1142615631 - 2¹⁵ = 1142582863 is a prime.

It is a super-2 number, since 2×1142615631² = 2611140960411056322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142615681) 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, 76251 + ... + 89996.

It is an arithmetic number, because the mean of its divisors is an integer number (99748800).

Almost surely, 2^1142615631 is an apocalyptic number.

1142615631 is a deficient number, since it is larger than the sum of its proper divisors (453365169).

1142615631 is a wasteful number, since it uses less digits than its factorization.

1142615631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166358.

The product of its digits is 4320, while the sum is 30.

The square root of 1142615631 is about 33802.5979918704. The cubic root of 1142615631 is about 1045.4422648179.

The spelling of 1142615631 in words is "one billion, one hundred forty-two million, six hundred fifteen thousand, six hundred thirty-one".