155002002 has 32 divisors (see below), whose sum is σ = 314919360. Its totient is φ = 50853120.

The previous prime is 155001997. The next prime is 155002009. The reversal of 155002002 is 200200551.

It is not an unprimeable number, because it can be changed into a prime (155002009) 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, 203302 + ... + 204062.

It is an arithmetic number, because the mean of its divisors is an integer number (9841230).

Almost surely, 2^155002002 is an apocalyptic number.

155002002 is an abundant number, since it is smaller than the sum of its proper divisors (159917358).

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

155002002 is a wasteful number, since it uses less digits than its factorization.

155002002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1258.

The product of its (nonzero) digits is 100, while the sum is 15.

The square root of 155002002 is about 12449.9799999839. The cubic root of 155002002 is about 537.1708481972.

Adding to 155002002 its reverse (200200551), we get a palindrome (355202553).

The spelling of 155002002 in words is "one hundred fifty-five million, two thousand, two".