16951489 has 2 divisors, whose sum is σ = 16951490. Its totient is φ = 16951488.

The previous prime is 16951471. The next prime is 16951507. The reversal of 16951489 is 98415961.

It is a balanced prime because it is at equal distance from previous prime (16951471) and next prime (16951507).

It can be written as a sum of positive squares in only one way, i.e., 16744464 + 207025 = 4092^2 + 455^2 .

It is a cyclic number.

It is not a de Polignac number, because 16951489 - 2²¹ = 14854337 is a prime.

It is not a weakly prime, because it can be changed into another prime (16961489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8475744 + 8475745.

It is an arithmetic number, because the mean of its divisors is an integer number (8475745).

Almost surely, 2^16951489 is an apocalyptic number.

It is an amenable number.

16951489 is a deficient number, since it is larger than the sum of its proper divisors (1).

16951489 is an equidigital number, since it uses as much as digits as its factorization.

16951489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 43.

The square root of 16951489 is about 4117.2185999774. The cubic root of 16951489 is about 256.8833467569.

The spelling of 16951489 in words is "sixteen million, nine hundred fifty-one thousand, four hundred eighty-nine".