365452421 has 2 divisors, whose sum is σ = 365452422. Its totient is φ = 365452420.

The previous prime is 365452411. The next prime is 365452427. The reversal of 365452421 is 124254563.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 217562500 + 147889921 = 14750^2 + 12161^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-365452421 is a prime.

It is a super-2 number, since 2×365452421² = 267110944029522482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (365452427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 182726210 + 182726211.

It is an arithmetic number, because the mean of its divisors is an integer number (182726211).

Almost surely, 2^365452421 is an apocalyptic number.

It is an amenable number.

365452421 is a deficient number, since it is larger than the sum of its proper divisors (1).

365452421 is an equidigital number, since it uses as much as digits as its factorization.

365452421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28800, while the sum is 32.

The square root of 365452421 is about 19116.8099064671. The cubic root of 365452421 is about 714.9521026809.

The spelling of 365452421 in words is "three hundred sixty-five million, four hundred fifty-two thousand, four hundred twenty-one".