155144254 has 8 divisors (see below), whose sum is σ = 234776160. Its totient is φ = 76885536.

The previous prime is 155144251. The next prime is 155144263. The reversal of 155144254 is 452441551.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155144251) 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, 343014 + ... + 343465.

It is an arithmetic number, because the mean of its divisors is an integer number (29347020).

Almost surely, 2^155144254 is an apocalyptic number.

155144254 is a deficient number, since it is larger than the sum of its proper divisors (79631906).

155144254 is a wasteful number, since it uses less digits than its factorization.

155144254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686594.

The product of its digits is 16000, while the sum is 31.

The square root of 155144254 is about 12455.6916307365. The cubic root of 155144254 is about 537.3351262117.

The spelling of 155144254 in words is "one hundred fifty-five million, one hundred forty-four thousand, two hundred fifty-four".