145799790 has 16 divisors (see below), whose sum is σ = 349919568. Its totient is φ = 38879936.

The previous prime is 145799779. The next prime is 145799807. The reversal of 145799790 is 97997541.

It is a happy number.

145799790 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2429967 + ... + 2430026.

It is an arithmetic number, because the mean of its divisors is an integer number (21869973).

Almost surely, 2^145799790 is an apocalyptic number.

145799790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

145799790 is an abundant number, since it is smaller than the sum of its proper divisors (204119778).

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

145799790 is a wasteful number, since it uses less digits than its factorization.

145799790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4860003.

The product of its (nonzero) digits is 714420, while the sum is 51.

The square root of 145799790 is about 12074.7583826758. The cubic root of 145799790 is about 526.3229401853.

The spelling of 145799790 in words is "one hundred forty-five million, seven hundred ninety-nine thousand, seven hundred ninety".