231261067 has 4 divisors (see below), whose sum is σ = 241315920. Its totient is φ = 221206216.

The previous prime is 231260983. The next prime is 231261073. The reversal of 231261067 is 760162132.

231261067 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 231261067 - 2²⁷ = 97043339 is a prime.

It is a super-2 number, since 2×231261067² = 106963362219956978, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231261097) 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, 5027392 + ... + 5027437.

It is an arithmetic number, because the mean of its divisors is an integer number (60328980).

Almost surely, 2^231261067 is an apocalyptic number.

231261067 is a deficient number, since it is larger than the sum of its proper divisors (10054853).

231261067 is a wasteful number, since it uses less digits than its factorization.

231261067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10054852.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 231261067 is about 15207.2702021106. The cubic root of 231261067 is about 613.8103045511.

The spelling of 231261067 in words is "two hundred thirty-one million, two hundred sixty-one thousand, sixty-seven".