231062261 has 4 divisors (see below), whose sum is σ = 231291372. Its totient is φ = 230833152.

The previous prime is 231062257. The next prime is 231062267. The reversal of 231062261 is 162260132.

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 101808100 + 129254161 = 10090^2 + 11369^2 .

It is a cyclic number.

It is not a de Polignac number, because 231062261 - 2² = 231062257 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 (231062267) 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, 113036 + ... + 115061.

It is an arithmetic number, because the mean of its divisors is an integer number (57822843).

Almost surely, 2^231062261 is an apocalyptic number.

It is an amenable number.

231062261 is a deficient number, since it is larger than the sum of its proper divisors (229111).

231062261 is a wasteful number, since it uses less digits than its factorization.

231062261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229110.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 231062261 is about 15200.7322520989. The cubic root of 231062261 is about 613.6343646381.

The spelling of 231062261 in words is "two hundred thirty-one million, sixty-two thousand, two hundred sixty-one".