145331442542 has 24 divisors (see below), whose sum is σ = 258048778008. Its totient is φ = 60978226320.

The previous prime is 145331442523. The next prime is 145331442587. The reversal of 145331442542 is 245244133541.

It is a super-2 number, since 2×145331442542² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145331442496 and 145331442505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23094668 + ... + 23100959.

It is an arithmetic number, because the mean of its divisors is an integer number (10752032417).

Almost surely, 2^145331442542 is an apocalyptic number.

145331442542 is a deficient number, since it is larger than the sum of its proper divisors (112717335466).

145331442542 is a wasteful number, since it uses less digits than its factorization.

145331442542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46195664 (or 46195653 counting only the distinct ones).

The product of its digits is 230400, while the sum is 38.

The spelling of 145331442542 in words is "one hundred forty-five billion, three hundred thirty-one million, four hundred forty-two thousand, five hundred forty-two".