155235430 has 48 divisors (see below), whose sum is σ = 333014976. Its totient is φ = 51918720.

The previous prime is 155235413. The next prime is 155235433. The reversal of 155235430 is 34532551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155235433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16227 + ... + 23953.

It is an arithmetic number, because the mean of its divisors is an integer number (6937812).

Almost surely, 2^155235430 is an apocalyptic number.

155235430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155235430 is an abundant number, since it is smaller than the sum of its proper divisors (177779546).

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

155235430 is a wasteful number, since it uses less digits than its factorization.

155235430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7789 (or 7782 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 155235430 is about 12459.3511066989. The cubic root of 155235430 is about 537.4403669195.

Adding to 155235430 its reverse (34532551), we get a palindrome (189767981).

The spelling of 155235430 in words is "one hundred fifty-five million, two hundred thirty-five thousand, four hundred thirty".