154921056 has 24 divisors (see below), whose sum is σ = 406668024. Its totient is φ = 51640320.

The previous prime is 154921049. The next prime is 154921093. The reversal of 154921056 is 650129451.

It is a tau number, because it is divible by the number of its divisors (24).

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 3 ways as a sum of consecutive naturals, for example, 806785 + ... + 806976.

It is an arithmetic number, because the mean of its divisors is an integer number (16944501).

Almost surely, 2^154921056 is an apocalyptic number.

154921056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

154921056 is an abundant number, since it is smaller than the sum of its proper divisors (251746968).

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

154921056 is a wasteful number, since it uses less digits than its factorization.

154921056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1613774 (or 1613766 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 154921056 is about 12446.7287268583. The cubic root of 154921056 is about 537.0773238078.

The spelling of 154921056 in words is "one hundred fifty-four million, nine hundred twenty-one thousand, fifty-six".