142540415531 has 6 divisors (see below), whose sum is σ = 146496980700. Its totient is φ = 138687970536.

The previous prime is 142540415497. The next prime is 142540415557. The reversal of 142540415531 is 135514045241.

It is a happy number.

It is not a de Polignac number, because 142540415531 - 2⁶ = 142540415467 is a prime.

It is a super-2 number, since 2×142540415531² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142540415491 and 142540415500.

It is not an unprimeable number, because it can be changed into a prime (142540415561) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 52058681 + ... + 52061418.

It is an arithmetic number, because the mean of its divisors is an integer number (24416163450).

Almost surely, 2^142540415531 is an apocalyptic number.

142540415531 is a deficient number, since it is larger than the sum of its proper divisors (3956565169).

142540415531 is an equidigital number, since it uses as much as digits as its factorization.

142540415531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104120173 (or 104120136 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 35.

The spelling of 142540415531 in words is "one hundred forty-two billion, five hundred forty million, four hundred fifteen thousand, five hundred thirty-one".