155254242 has 32 divisors (see below), whose sum is σ = 364795200. Its totient is φ = 43427520.

The previous prime is 155254219. The next prime is 155254247. The reversal of 155254242 is 242452551.

155254242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (155254247) 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, 89617 + ... + 91332.

It is an arithmetic number, because the mean of its divisors is an integer number (11399850).

Almost surely, 2^155254242 is an apocalyptic number.

155254242 is an abundant number, since it is smaller than the sum of its proper divisors (209540958).

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

155254242 is a wasteful number, since it uses less digits than its factorization.

155254242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180978.

The product of its digits is 16000, while the sum is 30.

The square root of 155254242 is about 12460.1060188106. The cubic root of 155254242 is about 537.4620757090.

The spelling of 155254242 in words is "one hundred fifty-five million, two hundred fifty-four thousand, two hundred forty-two".