231053773 has 2 divisors, whose sum is σ = 231053774. Its totient is φ = 231053772.

The previous prime is 231053747. The next prime is 231053777. The reversal of 231053773 is 377350132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 213101604 + 17952169 = 14598^2 + 4237^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231053773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231053777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115526886 + 115526887.

It is an arithmetic number, because the mean of its divisors is an integer number (115526887).

Almost surely, 2^231053773 is an apocalyptic number.

It is an amenable number.

231053773 is a deficient number, since it is larger than the sum of its proper divisors (1).

231053773 is an equidigital number, since it uses as much as digits as its factorization.

231053773 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13230, while the sum is 31.

The square root of 231053773 is about 15200.4530524587. The cubic root of 231053773 is about 613.6268506572.

The spelling of 231053773 in words is "two hundred thirty-one million, fifty-three thousand, seven hundred seventy-three".