142331903 has 16 divisors (see below), whose sum is σ = 164915520. Its totient is φ = 120324096.

The previous prime is 142331899. The next prime is 142331911. The reversal of 142331903 is 309133241.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 142331903 - 2² = 142331899 is a prime.

It is a super-2 number, since 2×142331903² = 40516741223202818, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142331953) 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, 184703 + ... + 185471.

It is an arithmetic number, because the mean of its divisors is an integer number (10307220).

Almost surely, 2^142331903 is an apocalyptic number.

142331903 is a deficient number, since it is larger than the sum of its proper divisors (22583617).

142331903 is a wasteful number, since it uses less digits than its factorization.

142331903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1106.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 142331903 is about 11930.2935001617. The cubic root of 142331903 is about 522.1165007169.

The spelling of 142331903 in words is "one hundred forty-two million, three hundred thirty-one thousand, nine hundred three".