230521994 has 4 divisors (see below), whose sum is σ = 345782994. Its totient is φ = 115260996.

The previous prime is 230521987. The next prime is 230521999. The reversal of 230521994 is 499125032.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 223891369 + 6630625 = 14963^2 + 2575^2 .

It is not an unprimeable number, because it can be changed into a prime (230521999) 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 as a sum of consecutive naturals, namely, 57630497 + ... + 57630500.

Almost surely, 2^230521994 is an apocalyptic number.

230521994 is a deficient number, since it is larger than the sum of its proper divisors (115261000).

230521994 is a wasteful number, since it uses less digits than its factorization.

230521994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115260999.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 230521994 is about 15182.9507672257. The cubic root of 230521994 is about 613.1557272320.

The spelling of 230521994 in words is "two hundred thirty million, five hundred twenty-one thousand, nine hundred ninety-four".