155260242 has 24 divisors (see below), whose sum is σ = 336626316. Its totient is φ = 51718176.

The previous prime is 155260187. The next prime is 155260247. The reversal of 155260242 is 242062551.

155260242 is a `hidden beast` number, since 1 + 5 + 52 + 602 + 4 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 148864401 + 6395841 = 12201^2 + 2529^2 .

It is not an unprimeable number, because it can be changed into a prime (155260247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51028 + ... + 53984.

Almost surely, 2^155260242 is an apocalyptic number.

155260242 is an abundant number, since it is smaller than the sum of its proper divisors (181366074).

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

155260242 is a wasteful number, since it uses less digits than its factorization.

155260242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5882 (or 5879 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 155260242 is about 12460.3467849013. The cubic root of 155260242 is about 537.4689992577.

The spelling of 155260242 in words is "one hundred fifty-five million, two hundred sixty thousand, two hundred forty-two".