155155430 has 48 divisors (see below), whose sum is σ = 304902576. Its totient is φ = 56793600.

The previous prime is 155155421. The next prime is 155155453. The reversal of 155155430 is 34551551.

155155430 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 155155393 and 155155402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 106205 + ... + 107655.

It is an arithmetic number, because the mean of its divisors is an integer number (6352137).

Almost surely, 2^155155430 is an apocalyptic number.

155155430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155155430 is a deficient number, since it is larger than the sum of its proper divisors (149747146).

155155430 is a wasteful number, since it uses less digits than its factorization.

155155430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1529 (or 1512 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 29.

The square root of 155155430 is about 12456.1402529034. The cubic root of 155155430 is about 537.3480284259.

The spelling of 155155430 in words is "one hundred fifty-five million, one hundred fifty-five thousand, four hundred thirty".