16131241 has 6 divisors (see below), whose sum is σ = 18764970. Its totient is φ = 13826736.

The previous prime is 16131233. The next prime is 16131307. The reversal of 16131241 is 14213161.

16131241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 16032016 + 99225 = 4004^2 + 315^2 .

It is not a de Polignac number, because 16131241 - 2³ = 16131233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16131341) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 164556 + ... + 164653.

It is an arithmetic number, because the mean of its divisors is an integer number (3127495).

Almost surely, 2^16131241 is an apocalyptic number.

It is an amenable number.

16131241 is a deficient number, since it is larger than the sum of its proper divisors (2633729).

16131241 is an equidigital number, since it uses as much as digits as its factorization.

16131241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329223 (or 329216 counting only the distinct ones).

The product of its digits is 144, while the sum is 19.

The square root of 16131241 is about 4016.3716212522. The cubic root of 16131241 is about 252.6713068149.

The spelling of 16131241 in words is "sixteen million, one hundred thirty-one thousand, two hundred forty-one".