230155133 has 8 divisors (see below), whose sum is σ = 254558808. Its totient is φ = 206708544.

The previous prime is 230155103. The next prime is 230155169. The reversal of 230155133 is 331551032.

It can be written as a sum of positive squares in 4 ways, for example, as 75724804 + 154430329 = 8702^2 + 12427^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 230155133 - 2²⁴ = 213377917 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 230155099 and 230155108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230155103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 238766 + ... + 239727.

It is an arithmetic number, because the mean of its divisors is an integer number (31819851).

Almost surely, 2^230155133 is an apocalyptic number.

It is an amenable number.

230155133 is a deficient number, since it is larger than the sum of its proper divisors (24403675).

230155133 is a wasteful number, since it uses less digits than its factorization.

230155133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478543.

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 230155133 is about 15170.8646095073. The cubic root of 230155133 is about 612.8302885000.

The spelling of 230155133 in words is "two hundred thirty million, one hundred fifty-five thousand, one hundred thirty-three".