16540913 has 2 divisors, whose sum is σ = 16540914. Its totient is φ = 16540912.

The previous prime is 16540907. The next prime is 16540919. The reversal of 16540913 is 31904561.

It is a balanced prime because it is at equal distance from previous prime (16540907) and next prime (16540919).

It can be written as a sum of positive squares in only one way, i.e., 13890529 + 2650384 = 3727^2 + 1628^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16540913 is a prime.

It is not a weakly prime, because it can be changed into another prime (16540919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8270456 + 8270457.

It is an arithmetic number, because the mean of its divisors is an integer number (8270457).

Almost surely, 2^16540913 is an apocalyptic number.

It is an amenable number.

16540913 is a deficient number, since it is larger than the sum of its proper divisors (1).

16540913 is an equidigital number, since it uses as much as digits as its factorization.

16540913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 16540913 is about 4067.0521265408. The cubic root of 16540913 is about 254.7924133970.

The spelling of 16540913 in words is "sixteen million, five hundred forty thousand, nine hundred thirteen".