154494159 has 4 divisors (see below), whose sum is σ = 205992216. Its totient is φ = 102996104.

The previous prime is 154494139. The next prime is 154494167. The reversal of 154494159 is 951494451.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 154494159 - 2⁵ = 154494127 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 154494159.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154494139) 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, 25749024 + ... + 25749029.

It is an arithmetic number, because the mean of its divisors is an integer number (51498054).

Almost surely, 2^154494159 is an apocalyptic number.

154494159 is a deficient number, since it is larger than the sum of its proper divisors (51498057).

154494159 is an equidigital number, since it uses as much as digits as its factorization.

154494159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51498056.

The product of its digits is 129600, while the sum is 42.

The square root of 154494159 is about 12429.5679329573. The cubic root of 154494159 is about 536.5835505623.

It can be divided in two parts, 1544 and 94159, that added together give a triangular number (95703 = T₄₃₇).

The spelling of 154494159 in words is "one hundred fifty-four million, four hundred ninety-four thousand, one hundred fifty-nine".