155120502 has 32 divisors (see below), whose sum is σ = 319739904. Its totient is φ = 50133600.

The previous prime is 155120501. The next prime is 155120509. The reversal of 155120502 is 205021551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155120501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72427 + ... + 74537.

It is an arithmetic number, because the mean of its divisors is an integer number (9991872).

Almost surely, 2^155120502 is an apocalyptic number.

155120502 is an abundant number, since it is smaller than the sum of its proper divisors (164619402).

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

155120502 is a wasteful number, since it uses less digits than its factorization.

155120502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2484.

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 155120502 is about 12454.7381345414. The cubic root of 155120502 is about 537.3077034853.

The spelling of 155120502 in words is "one hundred fifty-five million, one hundred twenty thousand, five hundred two".