16132861 has 2 divisors, whose sum is σ = 16132862. Its totient is φ = 16132860.

The previous prime is 16132841. The next prime is 16132871. The reversal of 16132861 is 16823161.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14707225 + 1425636 = 3835^2 + 1194^2 .

It is a cyclic number.

It is not a de Polignac number, because 16132861 - 2¹⁵ = 16100093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16132801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8066430 + 8066431.

It is an arithmetic number, because the mean of its divisors is an integer number (8066431).

Almost surely, 2^16132861 is an apocalyptic number.

It is an amenable number.

16132861 is a deficient number, since it is larger than the sum of its proper divisors (1).

16132861 is an equidigital number, since it uses as much as digits as its factorization.

16132861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 28.

The square root of 16132861 is about 4016.5732907542. The cubic root of 16132861 is about 252.6797648089.

The spelling of 16132861 in words is "sixteen million, one hundred thirty-two thousand, eight hundred sixty-one".