155992254 has 32 divisors (see below), whose sum is σ = 345150720. Its totient is φ = 46603200.

The previous prime is 155992253. The next prime is 155992267. The reversal of 155992254 is 452299551.

It is a happy number.

155992254 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155992253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11959 + ... + 21330.

It is an arithmetic number, because the mean of its divisors is an integer number (10785960).

Almost surely, 2^155992254 is an apocalyptic number.

155992254 is an abundant number, since it is smaller than the sum of its proper divisors (189158466).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155992254 is a wasteful number, since it uses less digits than its factorization.

155992254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33376.

The product of its digits is 162000, while the sum is 42.

The square root of 155992254 is about 12489.6859047776. The cubic root of 155992254 is about 538.3123511542.

The spelling of 155992254 in words is "one hundred fifty-five million, nine hundred ninety-two thousand, two hundred fifty-four".