154139328 has 112 divisors (see below), whose sum is σ = 517916160. Its totient is φ = 44036352.

The previous prime is 154139309. The next prime is 154139369. The reversal of 154139328 is 823931451.

154139328 is a `hidden beast` number, since 1 + 541 + 3 + 93 + 28 = 666.

154139328 is nontrivially palindromic in base 5.

It is a tau number, because it is divible by the number of its divisors (112).

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

It is a junction number, because it is equal to n+sod(n) for n = 154139292 and 154139301.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5725 + ... + 18467.

Almost surely, 2^154139328 is an apocalyptic number.

154139328 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 154139328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (258958080).

154139328 is an abundant number, since it is smaller than the sum of its proper divisors (363776832).

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

154139328 is a wasteful number, since it uses less digits than its factorization.

154139328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12771 (or 12755 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 154139328 is about 12415.2860619480. The cubic root of 154139328 is about 536.1724402474.

The spelling of 154139328 in words is "one hundred fifty-four million, one hundred thirty-nine thousand, three hundred twenty-eight".