231427207 has 4 divisors (see below), whose sum is σ = 252466056. Its totient is φ = 210388360.

The previous prime is 231427123. The next prime is 231427211. The reversal of 231427207 is 702724132.

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

It is a cyclic number.

It is not a de Polignac number, because 231427207 - 2¹⁵ = 231394439 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 (231421207) 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, 10519408 + ... + 10519429.

It is an arithmetic number, because the mean of its divisors is an integer number (63116514).

Almost surely, 2^231427207 is an apocalyptic number.

231427207 is a deficient number, since it is larger than the sum of its proper divisors (21038849).

231427207 is a wasteful number, since it uses less digits than its factorization.

231427207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21038848.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 231427207 is about 15212.7317402234. The cubic root of 231427207 is about 613.9572582866.

The spelling of 231427207 in words is "two hundred thirty-one million, four hundred twenty-seven thousand, two hundred seven".