155052442 has 8 divisors (see below), whose sum is σ = 233748000. Its totient is φ = 77136444.

The previous prime is 155052437. The next prime is 155052467. The reversal of 155052442 is 244250551.

155052442 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a self number, because there is not a number n which added to its sum of digits gives 155052442.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194392 + ... + 195187.

It is an arithmetic number, because the mean of its divisors is an integer number (29218500).

Almost surely, 2^155052442 is an apocalyptic number.

155052442 is a deficient number, since it is larger than the sum of its proper divisors (78695558).

155052442 is a wasteful number, since it uses less digits than its factorization.

155052442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389780.

The product of its (nonzero) digits is 8000, while the sum is 28.

The square root of 155052442 is about 12452.0055412773. The cubic root of 155052442 is about 537.2291097223.

The spelling of 155052442 in words is "one hundred fifty-five million, fifty-two thousand, four hundred forty-two".