15949161 has 12 divisors (see below), whose sum is σ = 23108592. Its totient is φ = 10600056.

The previous prime is 15949133. The next prime is 15949181. The reversal of 15949161 is 16194951.

15949161 is a `hidden beast` number, since 1 + 594 + 9 + 1 + 61 = 666.

It is not a de Polignac number, because 15949161 - 2⁷ = 15949033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15949181) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 570 + ... + 5676.

It is an arithmetic number, because the mean of its divisors is an integer number (1925716).

Almost surely, 2^15949161 is an apocalyptic number.

It is an amenable number.

15949161 is a deficient number, since it is larger than the sum of its proper divisors (7159431).

15949161 is a wasteful number, since it uses less digits than its factorization.

15949161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5460 (or 5457 counting only the distinct ones).

The product of its digits is 9720, while the sum is 36.

The square root of 15949161 is about 3993.6400689096. The cubic root of 15949161 is about 251.7170387795.

It can be divided in two parts, 15949 and 161, that added together give a triangular number (16110 = T₁₇₉).

The spelling of 15949161 in words is "fifteen million, nine hundred forty-nine thousand, one hundred sixty-one".