16249049 has 2 divisors, whose sum is σ = 16249050. Its totient is φ = 16249048.

The previous prime is 16249043. The next prime is 16249069. The reversal of 16249049 is 94094261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15054400 + 1194649 = 3880^2 + 1093^2 .

It is an emirp because it is prime and its reverse (94094261) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16249049 - 2¹² = 16244953 is a prime.

It is not a weakly prime, because it can be changed into another prime (16249043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8124524 + 8124525.

It is an arithmetic number, because the mean of its divisors is an integer number (8124525).

Almost surely, 2^16249049 is an apocalyptic number.

It is an amenable number.

16249049 is a deficient number, since it is larger than the sum of its proper divisors (1).

16249049 is an equidigital number, since it uses as much as digits as its factorization.

16249049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 16249049 is about 4031.0109153908. The cubic root of 16249049 is about 253.2849097582.

The spelling of 16249049 in words is "sixteen million, two hundred forty-nine thousand, forty-nine".