145656885 has 32 divisors (see below), whose sum is σ = 254822400. Its totient is φ = 70459200.

The previous prime is 145656883. The next prime is 145656923. The reversal of 145656885 is 588656541.

It is not a de Polignac number, because 145656885 - 2¹ = 145656883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145656883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 103416 + ... + 104814.

It is an arithmetic number, because the mean of its divisors is an integer number (7963200).

Almost surely, 2^145656885 is an apocalyptic number.

145656885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145656885 is a deficient number, since it is larger than the sum of its proper divisors (109165515).

145656885 is a wasteful number, since it uses less digits than its factorization.

145656885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2049.

The product of its digits is 1152000, while the sum is 48.

The square root of 145656885 is about 12068.8394222477. The cubic root of 145656885 is about 526.1509262961.

The spelling of 145656885 in words is "one hundred forty-five million, six hundred fifty-six thousand, eight hundred eighty-five".