154109090 has 16 divisors (see below), whose sum is σ = 279236160. Its totient is φ = 61234800.

The previous prime is 154109077. The next prime is 154109101. The reversal of 154109090 is 90901451.

It is a super-2 number, since 2×154109090² = 47499223241256200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49520 + ... + 52539.

It is an arithmetic number, because the mean of its divisors is an integer number (17452260).

Almost surely, 2^154109090 is an apocalyptic number.

154109090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

154109090 is a deficient number, since it is larger than the sum of its proper divisors (125127070).

154109090 is a wasteful number, since it uses less digits than its factorization.

154109090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102217.

The product of its (nonzero) digits is 1620, while the sum is 29.

The square root of 154109090 is about 12414.0682292309. The cubic root of 154109090 is about 536.1373770728.

The spelling of 154109090 in words is "one hundred fifty-four million, one hundred nine thousand, ninety".