142713131 has 4 divisors (see below), whose sum is σ = 155687064. Its totient is φ = 129739200.

The previous prime is 142713127. The next prime is 142713139. The reversal of 142713131 is 131317241.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131317241 = 11 ⋅11937931.

It is a cyclic number.

It is not a de Polignac number, because 142713131 - 2² = 142713127 is a prime.

It is a super-2 number, since 2×142713131² = 40734075519646322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142713097 and 142713106.

It is not an unprimeable number, because it can be changed into a prime (142713139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6486950 + ... + 6486971.

It is an arithmetic number, because the mean of its divisors is an integer number (38921766).

Almost surely, 2^142713131 is an apocalyptic number.

142713131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

142713131 is a deficient number, since it is larger than the sum of its proper divisors (12973933).

142713131 is a wasteful number, since it uses less digits than its factorization.

142713131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12973932.

The product of its digits is 504, while the sum is 23.

The square root of 142713131 is about 11946.2601260813. The cubic root of 142713131 is about 522.5822383776.

The spelling of 142713131 in words is "one hundred forty-two million, seven hundred thirteen thousand, one hundred thirty-one".