154157056 has 45 divisors (see below), whose sum is σ = 311515869. Its totient is φ = 76283904.

The previous prime is 154157053. The next prime is 154157057. The reversal of 154157056 is 650751451.

The square root of 154157056 is 12416.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 69222400 + 84934656 = 8320^2 + 9216^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154157053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1589200 + ... + 1589296.

Almost surely, 2^154157056 is an apocalyptic number.

154157056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

154157056 is the 12416-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 154157056

154157056 is an abundant number, since it is smaller than the sum of its proper divisors (157358813).

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

154157056 is an frugal number, since it uses more digits than its factorization.

154157056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222 (or 99 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 34.

The cubic root of 154157056 is about 536.1929950289.

The spelling of 154157056 in words is "one hundred fifty-four million, one hundred fifty-seven thousand, fifty-six".