155601204 has 48 divisors (see below), whose sum is σ = 419380416. Its totient is φ = 44377600.

The previous prime is 155601197. The next prime is 155601223. The reversal of 155601204 is 402106551.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32427 + ... + 36914.

It is an arithmetic number, because the mean of its divisors is an integer number (8737092).

Almost surely, 2^155601204 is an apocalyptic number.

It is an amenable number.

155601204 is an abundant number, since it is smaller than the sum of its proper divisors (263779212).

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

155601204 is a wasteful number, since it uses less digits than its factorization.

155601204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69376 (or 69374 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 155601204 is about 12474.0211640032. The cubic root of 155601204 is about 537.8621510354.

Adding to 155601204 its reverse (402106551), we get a palindrome (557707755).

The spelling of 155601204 in words is "one hundred fifty-five million, six hundred one thousand, two hundred four".