155202102 has 48 divisors (see below), whose sum is σ = 379113840. Its totient is φ = 47028960.

The previous prime is 155202079. The next prime is 155202107. The reversal of 155202102 is 201202551.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155202107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5343 + ... + 18410.

It is an arithmetic number, because the mean of its divisors is an integer number (7898205).

Almost surely, 2^155202102 is an apocalyptic number.

155202102 is an abundant number, since it is smaller than the sum of its proper divisors (223911738).

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

155202102 is a wasteful number, since it uses less digits than its factorization.

155202102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23786 (or 23769 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 155202102 is about 12458.0135655730. The cubic root of 155202102 is about 537.4019025591.

Adding to 155202102 its reverse (201202551), we get a palindrome (356404653).

The spelling of 155202102 in words is "one hundred fifty-five million, two hundred two thousand, one hundred two".