154159049 has 4 divisors (see below), whose sum is σ = 168173520. Its totient is φ = 140144580.

The previous prime is 154159037. The next prime is 154159051. The reversal of 154159049 is 940951451.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 154159049 - 2⁸ = 154158793 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (154159849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7007219 + ... + 7007240.

It is an arithmetic number, because the mean of its divisors is an integer number (42043380).

Almost surely, 2^154159049 is an apocalyptic number.

It is an amenable number.

154159049 is a deficient number, since it is larger than the sum of its proper divisors (14014471).

154159049 is a wasteful number, since it uses less digits than its factorization.

154159049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14014470.

The product of its (nonzero) digits is 32400, while the sum is 38.

The square root of 154159049 is about 12416.0802590834. The cubic root of 154159049 is about 536.1953057201.

The spelling of 154159049 in words is "one hundred fifty-four million, one hundred fifty-nine thousand, forty-nine".