142522518 has 16 divisors (see below), whose sum is σ = 291110400. Its totient is φ = 46496616.

The previous prime is 142522517. The next prime is 142522561. The reversal of 142522518 is 815225241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142522517) 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, 252418 + ... + 252981.

It is an arithmetic number, because the mean of its divisors is an integer number (18194400).

Almost surely, 2^142522518 is an apocalyptic number.

142522518 is an abundant number, since it is smaller than the sum of its proper divisors (148587882).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142522518 is a wasteful number, since it uses less digits than its factorization.

142522518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505451.

The product of its digits is 6400, while the sum is 30.

The square root of 142522518 is about 11938.2795242866. The cubic root of 142522518 is about 522.3494745843.

Adding to 142522518 its reverse (815225241), we get a palindrome (957747759).

The spelling of 142522518 in words is "one hundred forty-two million, five hundred twenty-two thousand, five hundred eighteen".