155051204 has 24 divisors (see below), whose sum is σ = 338294208. Its totient is φ = 60409440.

The previous prime is 155051189. The next prime is 155051209. The reversal of 155051204 is 402150551.

It is a happy number.

155051204 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 155051204.

It is not an unprimeable number, because it can be changed into a prime (155051209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251399 + ... + 252014.

It is an arithmetic number, because the mean of its divisors is an integer number (14095592).

Almost surely, 2^155051204 is an apocalyptic number.

155051204 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

155051204 is an abundant number, since it is smaller than the sum of its proper divisors (183243004).

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

155051204 is a wasteful number, since it uses less digits than its factorization.

155051204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503435 (or 503433 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 155051204 is about 12451.9558303104. The cubic root of 155051204 is about 537.2276799020.

The spelling of 155051204 in words is "one hundred fifty-five million, fifty-one thousand, two hundred four".