145242525242542 has 128 divisors (see below), whose sum is σ = 292003526707200. Its totient is φ = 52554156673536.

The previous prime is 145242525242537. The next prime is 145242525242567. The reversal of 145242525242542 is 245242525242541.

It is a super-2 number, since 2×145242525242542² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2137677423 + ... + 2137745365.

It is an arithmetic number, because the mean of its divisors is an integer number (2281277552400).

Almost surely, 2^{145242525242542} is an apocalyptic number.

145242525242542 is an abundant number, since it is smaller than the sum of its proper divisors (146761001464658).

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

145242525242542 is a wasteful number, since it uses less digits than its factorization.

145242525242542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89330.

The product of its digits is 10240000, while the sum is 49.

Subtracting 145242525242542 from its reverse (245242525242541), we obtain a palindrome (99999999999999).

The spelling of 145242525242542 in words is "one hundred forty-five trillion, two hundred forty-two billion, five hundred twenty-five million, two hundred forty-two thousand, five hundred forty-two".