230515133 has 4 divisors (see below), whose sum is σ = 232753248. Its totient is φ = 228277020.

The previous prime is 230515091. The next prime is 230515151. The reversal of 230515133 is 331515032.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 230515133 - 2¹⁸ = 230252989 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 = 230515099 and 230515108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230515333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1118903 + ... + 1119108.

It is an arithmetic number, because the mean of its divisors is an integer number (58188312).

Almost surely, 2^230515133 is an apocalyptic number.

It is an amenable number.

230515133 is a deficient number, since it is larger than the sum of its proper divisors (2238115).

230515133 is a wasteful number, since it uses less digits than its factorization.

230515133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2238114.

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

The square root of 230515133 is about 15182.7248213224. The cubic root of 230515133 is about 613.1496440768.

The spelling of 230515133 in words is "two hundred thirty million, five hundred fifteen thousand, one hundred thirty-three".