154255140 has 72 divisors (see below), whose sum is σ = 503907768. Its totient is φ = 37969920.

The previous prime is 154255133. The next prime is 154255193. The reversal of 154255140 is 41552451.

154255140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3849444 + 150405696 = 1962^2 + 12264^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30621 + ... + 35300.

It is an arithmetic number, because the mean of its divisors is an integer number (6998719).

Almost surely, 2^154255140 is an apocalyptic number.

154255140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154255140 is an abundant number, since it is smaller than the sum of its proper divisors (349652628).

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

154255140 is a wasteful number, since it uses less digits than its factorization.

154255140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65949 (or 65944 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 154255140 is about 12419.9492752587. The cubic root of 154255140 is about 536.3066903407.

The spelling of 154255140 in words is "one hundred fifty-four million, two hundred fifty-five thousand, one hundred forty".