142331404 has 6 divisors (see below), whose sum is σ = 249079964. Its totient is φ = 71165700.

The previous prime is 142331401. The next prime is 142331407. The reversal of 142331404 is 404133241.

142331404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (142331401) and next prime (142331407).

It is a super-2 number, since 2×142331404² = 40516457129222432, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (142331401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17791422 + ... + 17791429.

Almost surely, 2^142331404 is an apocalyptic number.

It is an amenable number.

142331404 is a deficient number, since it is larger than the sum of its proper divisors (106748560).

142331404 is a wasteful number, since it uses less digits than its factorization.

142331404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35582855 (or 35582853 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 142331404 is about 11930.2725869948. The cubic root of 142331404 is about 522.1158905552.

Adding to 142331404 its reverse (404133241), we get a palindrome (546464645).

The spelling of 142331404 in words is "one hundred forty-two million, three hundred thirty-one thousand, four hundred four".