16131061 has 2 divisors, whose sum is σ = 16131062. Its totient is φ = 16131060.

The previous prime is 16131043. The next prime is 16131091. The reversal of 16131061 is 16013161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15256836 + 874225 = 3906^2 + 935^2 .

It is a cyclic number.

It is not a de Polignac number, because 16131061 - 2¹⁷ = 15999989 is a prime.

It is a super-2 number, since 2×16131061² = 520422257971442, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16131091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8065530 + 8065531.

It is an arithmetic number, because the mean of its divisors is an integer number (8065531).

Almost surely, 2^16131061 is an apocalyptic number.

It is an amenable number.

16131061 is a deficient number, since it is larger than the sum of its proper divisors (1).

16131061 is an equidigital number, since it uses as much as digits as its factorization.

16131061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 16131061 is about 4016.3492129047. The cubic root of 16131061 is about 252.6703670029.

The spelling of 16131061 in words is "sixteen million, one hundred thirty-one thousand, sixty-one".