3012919961 has 4 divisors (see below), whose sum is σ = 3032110692. Its totient is φ = 2993729232.

The previous prime is 3012919909. The next prime is 3012919969. The reversal of 3012919961 is 1699192103.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1401379225 + 1611540736 = 37435^2 + 40144^2 .

It is a cyclic number.

It is not a de Polignac number, because 3012919961 - 2¹⁴ = 3012903577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3012919969) 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, 9595130 + ... + 9595443.

It is an arithmetic number, because the mean of its divisors is an integer number (758027673).

Almost surely, 2^3012919961 is an apocalyptic number.

It is an amenable number.

3012919961 is a deficient number, since it is larger than the sum of its proper divisors (19190731).

3012919961 is a wasteful number, since it uses less digits than its factorization.

3012919961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19190730.

The product of its (nonzero) digits is 26244, while the sum is 41.

The square root of 3012919961 is about 54890.0716068034. The cubic root of 3012919961 is about 1444.3170283332.

The spelling of 3012919961 in words is "three billion, twelve million, nine hundred nineteen thousand, nine hundred sixty-one".