371513489 has 2 divisors, whose sum is σ = 371513490. Its totient is φ = 371513488.

The previous prime is 371513477. The next prime is 371513491. The reversal of 371513489 is 984315173.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 330039889 + 41473600 = 18167^2 + 6440^2 .

It is an emirp because it is prime and its reverse (984315173) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 371513489 - 2²⁸ = 103078033 is a prime.

It is a Sophie Germain prime.

Together with 371513491, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (371513689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 185756744 + 185756745.

It is an arithmetic number, because the mean of its divisors is an integer number (185756745).

Almost surely, 2^371513489 is an apocalyptic number.

It is an amenable number.

371513489 is a deficient number, since it is larger than the sum of its proper divisors (1).

371513489 is an equidigital number, since it uses as much as digits as its factorization.

371513489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 41.

The square root of 371513489 is about 19274.6851854965. The cubic root of 371513489 is about 718.8829701914.

The spelling of 371513489 in words is "three hundred seventy-one million, five hundred thirteen thousand, four hundred eighty-nine".