230752421 has 2 divisors, whose sum is σ = 230752422. Its totient is φ = 230752420.

The previous prime is 230752411. The next prime is 230752429. The reversal of 230752421 is 124257032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 216501796 + 14250625 = 14714^2 + 3775^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-230752421 is a prime.

It is a super-2 number, since 2×230752421² = 106493359594722482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230752429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115376210 + 115376211.

It is an arithmetic number, because the mean of its divisors is an integer number (115376211).

Almost surely, 2^230752421 is an apocalyptic number.

It is an amenable number.

230752421 is a deficient number, since it is larger than the sum of its proper divisors (1).

230752421 is an equidigital number, since it uses as much as digits as its factorization.

230752421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 230752421 is about 15190.5372189400. The cubic root of 230752421 is about 613.3599602164.

The spelling of 230752421 in words is "two hundred thirty million, seven hundred fifty-two thousand, four hundred twenty-one".