145218032742 has 64 divisors (see below), whose sum is σ = 295932326400. Its totient is φ = 47500992000.

The previous prime is 145218032741. The next prime is 145218032747. The reversal of 145218032742 is 247230812541.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 145218032742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145218032741) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28465992 + ... + 28471092.

It is an arithmetic number, because the mean of its divisors is an integer number (4623942600).

Almost surely, 2^145218032742 is an apocalyptic number.

145218032742 is an abundant number, since it is smaller than the sum of its proper divisors (150714293658).

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

145218032742 is a wasteful number, since it uses less digits than its factorization.

145218032742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5629.

The product of its (nonzero) digits is 107520, while the sum is 39.

The spelling of 145218032742 in words is "one hundred forty-five billion, two hundred eighteen million, thirty-two thousand, seven hundred forty-two".