16313749 has 2 divisors, whose sum is σ = 16313750. Its totient is φ = 16313748.

The previous prime is 16313743. The next prime is 16313827. The reversal of 16313749 is 94731361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10824100 + 5489649 = 3290^2 + 2343^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16313749 is a prime.

It is a super-2 number, since 2×16313749² = 532276812870002, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16313743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8156874 + 8156875.

It is an arithmetic number, because the mean of its divisors is an integer number (8156875).

Almost surely, 2^16313749 is an apocalyptic number.

It is an amenable number.

16313749 is a deficient number, since it is larger than the sum of its proper divisors (1).

16313749 is an equidigital number, since it uses as much as digits as its factorization.

16313749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608, while the sum is 34.

The square root of 16313749 is about 4039.0282247095. The cubic root of 16313749 is about 253.6206387635.

The spelling of 16313749 in words is "sixteen million, three hundred thirteen thousand, seven hundred forty-nine".