365368221 has 6 divisors (see below), whose sum is σ = 527754110. Its totient is φ = 243578808.

The previous prime is 365368169. The next prime is 365368253. The reversal of 365368221 is 122863563.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 239816196 + 125552025 = 15486^2 + 11205^2 .

It is not a de Polignac number, because 365368221 - 2¹³ = 365360029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (365368121) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20298226 + ... + 20298243.

Almost surely, 2^365368221 is an apocalyptic number.

It is an amenable number.

365368221 is a deficient number, since it is larger than the sum of its proper divisors (162385889).

365368221 is a wasteful number, since it uses less digits than its factorization.

365368221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40596475 (or 40596472 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 365368221 is about 19114.6075293217. The cubic root of 365368221 is about 714.8971902970.

The spelling of 365368221 in words is "three hundred sixty-five million, three hundred sixty-eight thousand, two hundred twenty-one".