16131461 has 4 divisors (see below), whose sum is σ = 16144524. Its totient is φ = 16118400.

The previous prime is 16131449. The next prime is 16131463. The reversal of 16131461 is 16413161.

16131461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16413161 = 41 ⋅400321.

It can be written as a sum of positive squares in 2 ways, for example, as 7756225 + 8375236 = 2785^2 + 2894^2 .

It is a cyclic number.

It is not a de Polignac number, because 16131461 - 2⁶ = 16131397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16131463) 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, 4460 + ... + 7221.

It is an arithmetic number, because the mean of its divisors is an integer number (4036131).

Almost surely, 2^16131461 is an apocalyptic number.

It is an amenable number.

16131461 is a deficient number, since it is larger than the sum of its proper divisors (13063).

16131461 is a wasteful number, since it uses less digits than its factorization.

16131461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13062.

The product of its digits is 432, while the sum is 23.

The square root of 16131461 is about 4016.3990090627. The cubic root of 16131461 is about 252.6724554646.

The spelling of 16131461 in words is "sixteen million, one hundred thirty-one thousand, four hundred sixty-one".