145072015842 has 32 divisors (see below), whose sum is σ = 313158787200. Its totient is φ = 44538117120.

The previous prime is 145072015817. The next prime is 145072015861. The reversal of 145072015842 is 248510270541.

It is a super-2 number, since 2×145072015842² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 145072015842.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2036134 + ... + 2106177.

It is an arithmetic number, because the mean of its divisors is an integer number (9786212100).

Almost surely, 2^145072015842 is an apocalyptic number.

145072015842 is an abundant number, since it is smaller than the sum of its proper divisors (168086771358).

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

145072015842 is a wasteful number, since it uses less digits than its factorization.

145072015842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4142778.

The product of its (nonzero) digits is 89600, while the sum is 39.

The spelling of 145072015842 in words is "one hundred forty-five billion, seventy-two million, fifteen thousand, eight hundred forty-two".