154994984 has 16 divisors (see below), whose sum is σ = 307710900. Its totient is φ = 72938752.

The previous prime is 154994971. The next prime is 154995011. The reversal of 154994984 is 489499451.

It can be written as a sum of positive squares in 2 ways, for example, as 154306084 + 688900 = 12422^2 + 830^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 569699 + ... + 569970.

Almost surely, 2^154994984 is an apocalyptic number.

It is an amenable number.

154994984 is a deficient number, since it is larger than the sum of its proper divisors (152715916).

154994984 is a wasteful number, since it uses less digits than its factorization.

154994984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139692 (or 1139688 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 53.

The square root of 154994984 is about 12449.6981489512. The cubic root of 154994984 is about 537.1627409430.

The spelling of 154994984 in words is "one hundred fifty-four million, nine hundred ninety-four thousand, nine hundred eighty-four".