154642656 has 48 divisors (see below), whose sum is σ = 463929984. Its totient is φ = 44183424.

The previous prime is 154642637. The next prime is 154642661. The reversal of 154642656 is 656246451.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 114390 + ... + 115733.

It is an arithmetic number, because the mean of its divisors is an integer number (9665208).

Almost surely, 2^154642656 is an apocalyptic number.

154642656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

154642656 is an abundant number, since it is smaller than the sum of its proper divisors (309287328).

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

154642656 is a wasteful number, since it uses less digits than its factorization.

154642656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230143 (or 230135 counting only the distinct ones).

The product of its digits is 172800, while the sum is 39.

The square root of 154642656 is about 12435.5400365243. The cubic root of 154642656 is about 536.7554136547.

The spelling of 154642656 in words is "one hundred fifty-four million, six hundred forty-two thousand, six hundred fifty-six".