15966141 has 4 divisors (see below), whose sum is σ = 21288192. Its totient is φ = 10644092.

The previous prime is 15966127. The next prime is 15966143. The reversal of 15966141 is 14166951.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 15966141 - 2¹⁵ = 15933373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15966143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2661021 + ... + 2661026.

It is an arithmetic number, because the mean of its divisors is an integer number (5322048).

Almost surely, 2^15966141 is an apocalyptic number.

It is an amenable number.

15966141 is a deficient number, since it is larger than the sum of its proper divisors (5322051).

15966141 is an equidigital number, since it uses as much as digits as its factorization.

15966141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5322050.

The product of its digits is 6480, while the sum is 33.

The square root of 15966141 is about 3995.7653835029. The cubic root of 15966141 is about 251.8063358364.

The spelling of 15966141 in words is "fifteen million, nine hundred sixty-six thousand, one hundred forty-one".