154040155 has 4 divisors (see below), whose sum is σ = 184848192. Its totient is φ = 123232120.

The previous prime is 154040143. The next prime is 154040167. The reversal of 154040155 is 551040451.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (154040143) and next prime (154040167).

It is not a de Polignac number, because 154040155 - 2¹⁵ = 154007387 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15404011 + ... + 15404020.

It is an arithmetic number, because the mean of its divisors is an integer number (46212048).

Almost surely, 2^154040155 is an apocalyptic number.

154040155 is a deficient number, since it is larger than the sum of its proper divisors (30808037).

154040155 is an equidigital number, since it uses as much as digits as its factorization.

154040155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30808036.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 154040155 is about 12411.2914315957. The cubic root of 154040155 is about 536.0574247434.

The spelling of 154040155 in words is "one hundred fifty-four million, forty thousand, one hundred fifty-five".