231947753 has 2 divisors, whose sum is σ = 231947754. Its totient is φ = 231947752.

The previous prime is 231947743. The next prime is 231947759. The reversal of 231947753 is 357749132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 211760704 + 20187049 = 14552^2 + 4493^2 .

It is a cyclic number.

It is not a de Polignac number, because 231947753 - 2⁶ = 231947689 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231947753.

It is not a weakly prime, because it can be changed into another prime (231947759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115973876 + 115973877.

It is an arithmetic number, because the mean of its divisors is an integer number (115973877).

Almost surely, 2^231947753 is an apocalyptic number.

It is an amenable number.

231947753 is a deficient number, since it is larger than the sum of its proper divisors (1).

231947753 is an equidigital number, since it uses as much as digits as its factorization.

231947753 is an evil number, because the sum of its binary digits is even.

The product of its digits is 158760, while the sum is 41.

The square root of 231947753 is about 15229.8310233568. The cubic root of 231947753 is about 614.4172354278.

The spelling of 231947753 in words is "two hundred thirty-one million, nine hundred forty-seven thousand, seven hundred fifty-three".