142773631 has 64 divisors (see below), whose sum is σ = 204374016. Its totient is φ = 96163200.

The previous prime is 142773607. The next prime is 142773689. The reversal of 142773631 is 136377241.

142773631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 142773631 - 2¹¹ = 142771583 is a prime.

It is a super-2 number, since 2×142773631² = 40768619417848322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142773601) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1334280 + ... + 1334386.

It is an arithmetic number, because the mean of its divisors is an integer number (3193344).

Almost surely, 2^142773631 is an apocalyptic number.

142773631 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

142773631 is a deficient number, since it is larger than the sum of its proper divisors (61600385).

142773631 is a wasteful number, since it uses less digits than its factorization.

142773631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212.

The product of its digits is 21168, while the sum is 34.

The square root of 142773631 is about 11948.7920309963. The cubic root of 142773631 is about 522.6560735802.

The spelling of 142773631 in words is "one hundred forty-two million, seven hundred seventy-three thousand, six hundred thirty-one".