8401513 has 2 divisors, whose sum is σ = 8401514. Its totient is φ = 8401512.

The previous prime is 8401457. The next prime is 8401529. The reversal of 8401513 is 3151048.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4272489 + 4129024 = 2067^2 + 2032^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8401513 is a prime.

It is not a weakly prime, because it can be changed into another prime (8401543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4200756 + 4200757.

It is an arithmetic number, because the mean of its divisors is an integer number (4200757).

Almost surely, 2^8401513 is an apocalyptic number.

It is an amenable number.

8401513 is a deficient number, since it is larger than the sum of its proper divisors (1).

8401513 is an equidigital number, since it uses as much as digits as its factorization.

8401513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 8401513 is about 2898.5363547832. The cubic root of 8401513 is about 203.2914754532.

The spelling of 8401513 in words is "eight million, four hundred one thousand, five hundred thirteen".