154641564 has 72 divisors (see below), whose sum is σ = 487363968. Its totient is φ = 40165920.

The previous prime is 154641497. The next prime is 154641583. The reversal of 154641564 is 465146451.

154641564 is a `hidden beast` number, since 1 + 5 + 4 + 641 + 5 + 6 + 4 = 666.

154641564 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 25122 + ... + 30665.

It is an arithmetic number, because the mean of its divisors is an integer number (6768944).

Almost surely, 2^154641564 is an apocalyptic number.

154641564 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

154641564 is an abundant number, since it is smaller than the sum of its proper divisors (332722404).

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

154641564 is a wasteful number, since it uses less digits than its factorization.

154641564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55815 (or 55810 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 154641564 is about 12435.4961300304. The cubic root of 154641564 is about 536.7541502295.

The spelling of 154641564 in words is "one hundred fifty-four million, six hundred forty-one thousand, five hundred sixty-four".