231790049 has 2 divisors, whose sum is σ = 231790050. Its totient is φ = 231790048.

The previous prime is 231790043. The next prime is 231790109. The reversal of 231790049 is 940097132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 179372449 + 52417600 = 13393^2 + 7240^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231790049 is a prime.

It is not a weakly prime, because it can be changed into another prime (231790043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115895024 + 115895025.

It is an arithmetic number, because the mean of its divisors is an integer number (115895025).

Almost surely, 2^231790049 is an apocalyptic number.

It is an amenable number.

231790049 is a deficient number, since it is larger than the sum of its proper divisors (1).

231790049 is an equidigital number, since it uses as much as digits as its factorization.

231790049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 231790049 is about 15224.6526725571. The cubic root of 231790049 is about 614.2779540265.

The spelling of 231790049 in words is "two hundred thirty-one million, seven hundred ninety thousand, forty-nine".