142455640562122 has 8 divisors (see below), whose sum is σ = 215117578030500. Its totient is φ = 70749781218624.

The previous prime is 142455640562071. The next prime is 142455640562129. The reversal of 142455640562122 is 221265046554241.

It can be written as a sum of positive squares in 2 ways, for example, as 130069668326481 + 12385972235641 = 11404809^2 + 3519371^2 .

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

It is a super-2 number, since 2×142455640562122² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (142455640562129) 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, 239019530847 + ... + 239019531442.

Almost surely, 2^{142455640562122} is an apocalyptic number.

142455640562122 is a deficient number, since it is larger than the sum of its proper divisors (72661937468378).

142455640562122 is a wasteful number, since it uses less digits than its factorization.

142455640562122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478039062440.

The product of its (nonzero) digits is 4608000, while the sum is 49.

The spelling of 142455640562122 in words is "one hundred forty-two trillion, four hundred fifty-five billion, six hundred forty million, five hundred sixty-two thousand, one hundred twenty-two".