16012961 has 4 divisors (see below), whose sum is σ = 16084992. Its totient is φ = 15940932.

The previous prime is 16012951. The next prime is 16012967. The reversal of 16012961 is 16921061.

16012961 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 a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 16012961 - 2¹⁰ = 16011937 is a prime.

It is a super-4 number, since 4×16012961⁴ (a number of 30 digits) contains 4444 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 16012961.

It is not an unprimeable number, because it can be changed into a prime (16012967) 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, 35681 + ... + 36126.

It is an arithmetic number, because the mean of its divisors is an integer number (4021248).

Almost surely, 2^16012961 is an apocalyptic number.

It is an amenable number.

16012961 is a deficient number, since it is larger than the sum of its proper divisors (72031).

16012961 is an equidigital number, since it uses as much as digits as its factorization.

16012961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72030.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 16012961 is about 4001.6197970322. The cubic root of 16012961 is about 252.0522326011.

The spelling of 16012961 in words is "sixteen million, twelve thousand, nine hundred sixty-one".