154193664 has 72 divisors (see below), whose sum is σ = 432019840. Its totient is φ = 48688128.

The previous prime is 154193653. The next prime is 154193671. The reversal of 154193664 is 466391451.

It is a congruent 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, 9309 + ... + 19875.

Almost surely, 2^154193664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 154193664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216009920).

154193664 is an abundant number, since it is smaller than the sum of its proper divisors (277826176).

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

154193664 is a wasteful number, since it uses less digits than its factorization.

154193664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10605 (or 10591 counting only the distinct ones).

The product of its digits is 77760, while the sum is 39.

The square root of 154193664 is about 12417.4741392926. The cubic root of 154193664 is about 536.2354352954.

The spelling of 154193664 in words is "one hundred fifty-four million, one hundred ninety-three thousand, six hundred sixty-four".