142522553 has 12 divisors (see below), whose sum is σ = 151888560. Its totient is φ = 133363296.

The previous prime is 142522517. The next prime is 142522561. The reversal of 142522553 is 355225241.

It is not a de Polignac number, because 142522553 - 2¹⁶ = 142457017 is a prime.

It is a super-2 number, since 2×142522553² = 40625356227275618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142522573) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 150026 + ... + 150972.

It is an arithmetic number, because the mean of its divisors is an integer number (12657380).

Almost surely, 2^142522553 is an apocalyptic number.

It is an amenable number.

142522553 is a deficient number, since it is larger than the sum of its proper divisors (9366007).

142522553 is an frugal number, since it uses more digits than its factorization.

142522553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1144 (or 1055 counting only the distinct ones).

The product of its digits is 12000, while the sum is 29.

The square root of 142522553 is about 11938.2809901593. The cubic root of 142522553 is about 522.3495173429.

Adding to 142522553 its reverse (355225241), we get a palindrome (497747794).

The spelling of 142522553 in words is "one hundred forty-two million, five hundred twenty-two thousand, five hundred fifty-three".