154149918 has 64 divisors (see below), whose sum is σ = 352192512. Its totient is φ = 44634240.

The previous prime is 154149913. The next prime is 154149929. The reversal of 154149918 is 819941451.

154149918 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 154149918.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154149913) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88605 + ... + 90327.

It is an arithmetic number, because the mean of its divisors is an integer number (5503008).

Almost surely, 2^154149918 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 154149918, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176096256).

154149918 is an abundant number, since it is smaller than the sum of its proper divisors (198042594).

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

154149918 is a wasteful number, since it uses less digits than its factorization.

154149918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1809.

The product of its digits is 51840, while the sum is 42.

The square root of 154149918 is about 12415.7125449972. The cubic root of 154149918 is about 536.1847190435.

The spelling of 154149918 in words is "one hundred fifty-four million, one hundred forty-nine thousand, nine hundred eighteen".