71749313 has 2 divisors, whose sum is σ = 71749314. Its totient is φ = 71749312.

The previous prime is 71749297. The next prime is 71749343. The reversal of 71749313 is 31394717.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68425984 + 3323329 = 8272^2 + 1823^2 .

It is a cyclic number.

It is not a de Polignac number, because 71749313 - 2⁴ = 71749297 is a prime.

It is not a weakly prime, because it can be changed into another prime (71749343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35874656 + 35874657.

It is an arithmetic number, because the mean of its divisors is an integer number (35874657).

Almost surely, 2^71749313 is an apocalyptic number.

It is an amenable number.

71749313 is a deficient number, since it is larger than the sum of its proper divisors (1).

71749313 is an equidigital number, since it uses as much as digits as its factorization.

71749313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15876, while the sum is 35.

The square root of 71749313 is about 8470.4966206238. The cubic root of 71749313 is about 415.5333791148.

The spelling of 71749313 in words is "seventy-one million, seven hundred forty-nine thousand, three hundred thirteen".