230409157 has 4 divisors (see below), whose sum is σ = 251355456. Its totient is φ = 209462860.

The previous prime is 230409133. The next prime is 230409169. The reversal of 230409157 is 751904032.

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 230409157 - 2¹⁹ = 229884869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230409107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10473133 + ... + 10473154.

It is an arithmetic number, because the mean of its divisors is an integer number (62838864).

Almost surely, 2^230409157 is an apocalyptic number.

It is an amenable number.

230409157 is a deficient number, since it is larger than the sum of its proper divisors (20946299).

230409157 is a wasteful number, since it uses less digits than its factorization.

230409157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20946298.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 230409157 is about 15179.2344009835. The cubic root of 230409157 is about 613.0556674455.

The spelling of 230409157 in words is "two hundred thirty million, four hundred nine thousand, one hundred fifty-seven".