230087749 has 2 divisors, whose sum is σ = 230087750. Its totient is φ = 230087748.

The previous prime is 230087747. The next prime is 230087779. The reversal of 230087749 is 947780032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 157326849 + 72760900 = 12543^2 + 8530^2 .

It is a cyclic number.

It is not a de Polignac number, because 230087749 - 2¹ = 230087747 is a prime.

Together with 230087747, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230087747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115043874 + 115043875.

It is an arithmetic number, because the mean of its divisors is an integer number (115043875).

Almost surely, 2^230087749 is an apocalyptic number.

It is an amenable number.

230087749 is a deficient number, since it is larger than the sum of its proper divisors (1).

230087749 is an equidigital number, since it uses as much as digits as its factorization.

230087749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 230087749 is about 15168.6436110814. The cubic root of 230087749 is about 612.7704752393.

The spelling of 230087749 in words is "two hundred thirty million, eighty-seven thousand, seven hundred forty-nine".