368003521 has 2 divisors, whose sum is σ = 368003522. Its totient is φ = 368003520.

The previous prime is 368003479. The next prime is 368003527. The reversal of 368003521 is 125300863.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 325297296 + 42706225 = 18036^2 + 6535^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-368003521 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 368003521.

It is not a weakly prime, because it can be changed into another prime (368003527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 184001760 + 184001761.

It is an arithmetic number, because the mean of its divisors is an integer number (184001761).

Almost surely, 2^368003521 is an apocalyptic number.

It is an amenable number.

368003521 is a deficient number, since it is larger than the sum of its proper divisors (1).

368003521 is an equidigital number, since it uses as much as digits as its factorization.

368003521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 368003521 is about 19183.4178654378. The cubic root of 368003521 is about 716.6118596871.

The spelling of 368003521 in words is "three hundred sixty-eight million, three thousand, five hundred twenty-one".