230626661 has 4 divisors (see below), whose sum is σ = 236859852. Its totient is φ = 224393472.

The previous prime is 230626657. The next prime is 230626667. The reversal of 230626661 is 166626032.

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

It can be written as a sum of positive squares in 2 ways, for example, as 208253761 + 22372900 = 14431^2 + 4730^2 .

It is a cyclic number.

It is not a de Polignac number, because 230626661 - 2² = 230626657 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230626667) 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, 3116540 + ... + 3116613.

It is an arithmetic number, because the mean of its divisors is an integer number (59214963).

Almost surely, 2^230626661 is an apocalyptic number.

It is an amenable number.

230626661 is a deficient number, since it is larger than the sum of its proper divisors (6233191).

230626661 is an equidigital number, since it uses as much as digits as its factorization.

230626661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6233190.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 230626661 is about 15186.3972356843. The cubic root of 230626661 is about 613.2485129698.

The spelling of 230626661 in words is "two hundred thirty million, six hundred twenty-six thousand, six hundred sixty-one".