155400230 has 32 divisors (see below), whose sum is σ = 299531520. Its totient is φ = 57840640.

The previous prime is 155400227. The next prime is 155400251. The reversal of 155400230 is 32004551.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 9995 + ... + 20265.

It is an arithmetic number, because the mean of its divisors is an integer number (9360360).

Almost surely, 2^155400230 is an apocalyptic number.

155400230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155400230 is a deficient number, since it is larger than the sum of its proper divisors (144131290).

155400230 is a wasteful number, since it uses less digits than its factorization.

155400230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10384.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 155400230 is about 12465.9628589211. The cubic root of 155400230 is about 537.6304842755.

Adding to 155400230 its reverse (32004551), we get a palindrome (187404781).

The spelling of 155400230 in words is "one hundred fifty-five million, four hundred thousand, two hundred thirty".