145785727 has 16 divisors (see below), whose sum is σ = 162984960. Its totient is φ = 129589632.

The previous prime is 145785721. The next prime is 145785743. The reversal of 145785727 is 727587541.

145785727 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 145785727 - 2³ = 145785719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145785721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168498 + ... + 169360.

It is an arithmetic number, because the mean of its divisors is an integer number (10186560).

Almost surely, 2^145785727 is an apocalyptic number.

145785727 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

145785727 is a deficient number, since it is larger than the sum of its proper divisors (17199233).

145785727 is a wasteful number, since it uses less digits than its factorization.

145785727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1422.

The product of its digits is 548800, while the sum is 46.

The square root of 145785727 is about 12074.1760381402. The cubic root of 145785727 is about 526.3060176244.

The spelling of 145785727 in words is "one hundred forty-five million, seven hundred eighty-five thousand, seven hundred twenty-seven".