75499213 has 2 divisors, whose sum is σ = 75499214. Its totient is φ = 75499212.

The previous prime is 75499211. The next prime is 75499231. The reversal of 75499213 is 31299457.

Together with next prime (75499231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72897444 + 2601769 = 8538^2 + 1613^2 .

It is a cyclic number.

It is not a de Polignac number, because 75499213 - 2¹ = 75499211 is a prime.

Together with 75499211, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75499211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37749606 + 37749607.

It is an arithmetic number, because the mean of its divisors is an integer number (37749607).

Almost surely, 2^75499213 is an apocalyptic number.

It is an amenable number.

75499213 is a deficient number, since it is larger than the sum of its proper divisors (1).

75499213 is an equidigital number, since it uses as much as digits as its factorization.

75499213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 68040, while the sum is 40.

The square root of 75499213 is about 8689.0283116123. The cubic root of 75499213 is about 422.6499366305.

The spelling of 75499213 in words is "seventy-five million, four hundred ninety-nine thousand, two hundred thirteen".