16142961 has 4 divisors (see below), whose sum is σ = 21523952. Its totient is φ = 10761972.

The previous prime is 16142953. The next prime is 16142963. The reversal of 16142961 is 16924161.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 16924161 = 3 ⋅5641387.

It is not a de Polignac number, because 16142961 - 2³ = 16142953 is a prime.

It is a super-3 number, since 3×16142961³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (16142963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2690491 + ... + 2690496.

It is an arithmetic number, because the mean of its divisors is an integer number (5380988).

Almost surely, 2^16142961 is an apocalyptic number.

It is an amenable number.

16142961 is a deficient number, since it is larger than the sum of its proper divisors (5380991).

16142961 is an equidigital number, since it uses as much as digits as its factorization.

16142961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5380990.

The product of its digits is 2592, while the sum is 30.

The square root of 16142961 is about 4017.8303846728. The cubic root of 16142961 is about 252.7324839811.

The spelling of 16142961 in words is "sixteen million, one hundred forty-two thousand, nine hundred sixty-one".