154645420 has 24 divisors (see below), whose sum is σ = 325032624. Its totient is φ = 61805376.

The previous prime is 154645411. The next prime is 154645441. The reversal of 154645420 is 24546451.

It is a happy 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, 27922 + ... + 32998.

It is an arithmetic number, because the mean of its divisors is an integer number (13543026).

Almost surely, 2^154645420 is an apocalyptic number.

154645420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154645420 is an abundant number, since it is smaller than the sum of its proper divisors (170387204).

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

154645420 is a wasteful number, since it uses less digits than its factorization.

154645420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6609 (or 6607 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

The square root of 154645420 is about 12435.6511691186. The cubic root of 154645420 is about 536.7586115286.

The spelling of 154645420 in words is "one hundred fifty-four million, six hundred forty-five thousand, four hundred twenty".