73751213 has 2 divisors, whose sum is σ = 73751214. Its totient is φ = 73751212.

The previous prime is 73751189. The next prime is 73751261. The reversal of 73751213 is 31215737.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73650724 + 100489 = 8582^2 + 317^2 .

It is a cyclic number.

It is not a de Polignac number, because 73751213 - 2¹⁸ = 73489069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73051213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36875606 + 36875607.

It is an arithmetic number, because the mean of its divisors is an integer number (36875607).

Almost surely, 2^73751213 is an apocalyptic number.

It is an amenable number.

73751213 is a deficient number, since it is larger than the sum of its proper divisors (1).

73751213 is an equidigital number, since it uses as much as digits as its factorization.

73751213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4410, while the sum is 29.

The square root of 73751213 is about 8587.8526419589. The cubic root of 73751213 is about 419.3626254508.

The spelling of 73751213 in words is "seventy-three million, seven hundred fifty-one thousand, two hundred thirteen".