155235402 has 96 divisors (see below), whose sum is σ = 395366400. Its totient is φ = 43110144.

The previous prime is 155235401. The next prime is 155235403. The reversal of 155235402 is 204532551.

It is a happy number.

155235402 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (155235401) and next prime (155235403).

It is not an unprimeable number, because it can be changed into a prime (155235401) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1222263 + ... + 1222389.

It is an arithmetic number, because the mean of its divisors is an integer number (4118400).

Almost surely, 2^155235402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155235402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197683200).

155235402 is an abundant number, since it is smaller than the sum of its proper divisors (240130998).

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

155235402 is a wasteful number, since it uses less digits than its factorization.

155235402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340 (or 337 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 155235402 is about 12459.3499830449. The cubic root of 155235402 is about 537.4403346066.

Adding to 155235402 its reverse (204532551), we get a palindrome (359767953).

The spelling of 155235402 in words is "one hundred fifty-five million, two hundred thirty-five thousand, four hundred two".