142413531 has 16 divisors (see below), whose sum is σ = 215255040. Its totient is φ = 83026080.

The previous prime is 142413521. The next prime is 142413533. The reversal of 142413531 is 135314241.

It is a happy number.

It is not a de Polignac number, because 142413531 - 2⁵ = 142413499 is a prime.

It is a super-2 number, since 2×142413531² = 40563227623775922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (142413533) 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, 95355 + ... + 96836.

It is an arithmetic number, because the mean of its divisors is an integer number (13453440).

Almost surely, 2^142413531 is an apocalyptic number.

142413531 is a deficient number, since it is larger than the sum of its proper divisors (72841509).

142413531 is a wasteful number, since it uses less digits than its factorization.

142413531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192226.

The product of its digits is 1440, while the sum is 24.

The square root of 142413531 is about 11933.7140488617. The cubic root of 142413531 is about 522.2162937124.

Adding to 142413531 its reverse (135314241), we get a palindrome (277727772).

The spelling of 142413531 in words is "one hundred forty-two million, four hundred thirteen thousand, five hundred thirty-one".