154540115 has 32 divisors (see below), whose sum is σ = 204374016. Its totient is φ = 111674880.

The previous prime is 154540097. The next prime is 154540147. The reversal of 154540115 is 511045451.

It is a de Polignac number, because none of the positive numbers 2^k-154540115 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 587474 + ... + 587736.

It is an arithmetic number, because the mean of its divisors is an integer number (6386688).

Almost surely, 2^154540115 is an apocalyptic number.

154540115 is a deficient number, since it is larger than the sum of its proper divisors (49833901).

154540115 is a wasteful number, since it uses less digits than its factorization.

154540115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539.

The product of its (nonzero) digits is 2000, while the sum is 26.

The square root of 154540115 is about 12431.4164518771. The cubic root of 154540115 is about 536.6367495293.

Adding to 154540115 its reverse (511045451), we get a palindrome (665585566).

The spelling of 154540115 in words is "one hundred fifty-four million, five hundred forty thousand, one hundred fifteen".