154109490 has 32 divisors (see below), whose sum is σ = 370192896. Its totient is φ = 41059200.

The previous prime is 154109479. The next prime is 154109521. The reversal of 154109490 is 94901451.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57214 + ... + 59846.

It is an arithmetic number, because the mean of its divisors is an integer number (11568528).

Almost surely, 2^154109490 is an apocalyptic number.

154109490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

154109490 is an abundant number, since it is smaller than the sum of its proper divisors (216083406).

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

154109490 is a wasteful number, since it uses less digits than its factorization.

154109490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4594.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 154109490 is about 12414.0843399745. The cubic root of 154109490 is about 536.1378409320.

The spelling of 154109490 in words is "one hundred fifty-four million, one hundred nine thousand, four hundred ninety".