154149516 has 18 divisors (see below), whose sum is σ = 389655812. Its totient is φ = 51383160.

The previous prime is 154149481. The next prime is 154149521. The reversal of 154149516 is 615941451.

154149516 is a `hidden beast` number, since 154 + 1 + 495 + 16 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 4281931 = 154149516 / (1 + 5 + 4 + 1 + 4 + 9 + 5 + 1 + 6).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2140930 + ... + 2141001.

Almost surely, 2^154149516 is an apocalyptic number.

It is an amenable number.

154149516 is an abundant number, since it is smaller than the sum of its proper divisors (235506296).

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

154149516 is a wasteful number, since it uses less digits than its factorization.

154149516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4281941 (or 4281936 counting only the distinct ones).

The product of its digits is 21600, while the sum is 36.

The square root of 154149516 is about 12415.6963558231. The cubic root of 154149516 is about 536.1842529465.

The spelling of 154149516 in words is "one hundred fifty-four million, one hundred forty-nine thousand, five hundred sixteen".