142341531 has 8 divisors (see below), whose sum is σ = 190213200. Its totient is φ = 94682112.

The previous prime is 142341523. The next prime is 142341533. The reversal of 142341531 is 135143241.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 142341531 - 2³ = 142341523 is a prime.

It is a super-2 number, since 2×142341531² = 40522222894847922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (142341533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51490 + ... + 54183.

It is an arithmetic number, because the mean of its divisors is an integer number (23776650).

Almost surely, 2^142341531 is an apocalyptic number.

142341531 is a deficient number, since it is larger than the sum of its proper divisors (47871669).

142341531 is a wasteful number, since it uses less digits than its factorization.

142341531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106125.

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

The square root of 142341531 is about 11930.6970039474. The cubic root of 142341531 is about 522.1282732575.

Adding to 142341531 its reverse (135143241), we get a palindrome (277484772).

The spelling of 142341531 in words is "one hundred forty-two million, three hundred forty-one thousand, five hundred thirty-one".