142151031 has 20 divisors (see below), whose sum is σ = 231654984. Its totient is φ = 86151600.

The previous prime is 142150999. The next prime is 142151033. The reversal of 142151031 is 130151241.

It is not a de Polignac number, because 142151031 - 2⁵ = 142150999 is a prime.

It is a super-2 number, since 2×142151031² = 40413831228725922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 142150995 and 142151013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142151033) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 78880 + ... + 80661.

Almost surely, 2^142151031 is an apocalyptic number.

142151031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

142151031 is a deficient number, since it is larger than the sum of its proper divisors (89503953).

142151031 is a wasteful number, since it uses less digits than its factorization.

142151031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159564 (or 159555 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 142151031 is about 11922.7107236568. The cubic root of 142151031 is about 521.8952425533.

The spelling of 142151031 in words is "one hundred forty-two million, one hundred fifty-one thousand, thirty-one".