155442102 has 8 divisors (see below), whose sum is σ = 310884216. Its totient is φ = 51814032.

The previous prime is 155442083. The next prime is 155442107. The reversal of 155442102 is 201244551.

It is a sphenic number, since it is the product of 3 distinct primes.

155442102 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155442107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12953503 + ... + 12953514.

It is an arithmetic number, because the mean of its divisors is an integer number (38860527).

Almost surely, 2^155442102 is an apocalyptic number.

155442102 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

155442102 is a wasteful number, since it uses less digits than its factorization.

155442102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25907022.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 155442102 is about 12467.6421989083. The cubic root of 155442102 is about 537.6787674345.

Adding to 155442102 its reverse (201244551), we get a palindrome (356686653).

The spelling of 155442102 in words is "one hundred fifty-five million, four hundred forty-two thousand, one hundred two".