231053777 has 2 divisors, whose sum is σ = 231053778. Its totient is φ = 231053776.

The previous prime is 231053773. The next prime is 231053827. The reversal of 231053777 is 777350132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 230766481 + 287296 = 15191^2 + 536^2 .

It is a cyclic number.

It is not a de Polignac number, because 231053777 - 2² = 231053773 is a prime.

It is a super-3 number, since 3×231053777³ (a number of 26 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (231053773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115526888 + 115526889.

It is an arithmetic number, because the mean of its divisors is an integer number (115526889).

Almost surely, 2^231053777 is an apocalyptic number.

It is an amenable number.

231053777 is a deficient number, since it is larger than the sum of its proper divisors (1).

231053777 is an equidigital number, since it uses as much as digits as its factorization.

231053777 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30870, while the sum is 35.

The square root of 231053777 is about 15200.4531840337. The cubic root of 231053777 is about 613.6268541982.

The spelling of 231053777 in words is "two hundred thirty-one million, fifty-three thousand, seven hundred seventy-seven".