155204230 has 32 divisors (see below), whose sum is σ = 301579200. Its totient is φ = 57332352.

The previous prime is 155204221. The next prime is 155204251. The reversal of 155204230 is 32402551.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4965 + ... + 18304.

It is an arithmetic number, because the mean of its divisors is an integer number (9424350).

Almost surely, 2^155204230 is an apocalyptic number.

155204230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155204230 is a deficient number, since it is larger than the sum of its proper divisors (146374970).

155204230 is a wasteful number, since it uses less digits than its factorization.

155204230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23328.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 155204230 is about 12458.0989721546. The cubic root of 155204230 is about 537.4043586814.

Adding to 155204230 its reverse (32402551), we get a palindrome (187606781).

The spelling of 155204230 in words is "one hundred fifty-five million, two hundred four thousand, two hundred thirty".