154645020 has 72 divisors (see below), whose sum is σ = 473303376. Its totient is φ = 40868352.

The previous prime is 154645003. The next prime is 154645033. The reversal of 154645020 is 20546451.

154645020 is a `hidden beast` number, since 15 + 4 + 645 + 0 + 2 + 0 = 666.

154645020 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 23 ways as a sum of consecutive naturals, for example, 16539 + ... + 24141.

It is an arithmetic number, because the mean of its divisors is an integer number (6573658).

Almost surely, 2^154645020 is an apocalyptic number.

154645020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 154645020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236651688).

154645020 is an abundant number, since it is smaller than the sum of its proper divisors (318658356).

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

154645020 is a wasteful number, since it uses less digits than its factorization.

154645020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7731 (or 7726 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 154645020 is about 12435.6350863155. The cubic root of 154645020 is about 536.7581487417.

The spelling of 154645020 in words is "one hundred fifty-four million, six hundred forty-five thousand, twenty".