155241898 has 12 divisors (see below), whose sum is σ = 270881442. Its totient is φ = 66532200.

The previous prime is 155241887. The next prime is 155241917. The reversal of 155241898 is 898142551.

It can be written as a sum of positive squares in only one way, i.e., 151954929 + 3286969 = 12327^2 + 1813^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 791953 + ... + 792148.

Almost surely, 2^155241898 is an apocalyptic number.

155241898 is a deficient number, since it is larger than the sum of its proper divisors (115639544).

155241898 is a wasteful number, since it uses less digits than its factorization.

155241898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1584117 (or 1584110 counting only the distinct ones).

The product of its digits is 115200, while the sum is 43.

The square root of 155241898 is about 12459.6106680747. The cubic root of 155241898 is about 537.4478311004.

It can be divided in two parts, 1552418 and 98, that added together give a square (1552516 = 1246²).

The spelling of 155241898 in words is "one hundred fifty-five million, two hundred forty-one thousand, eight hundred ninety-eight".