3101961 has 4 divisors (see below), whose sum is σ = 4135952. Its totient is φ = 2067972.

The previous prime is 3101957. The next prime is 3101971. The reversal of 3101961 is 1691013.

It is a happy number.

3101961 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 3101961 - 2² = 3101957 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3101951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 516991 + ... + 516996.

It is an arithmetic number, because the mean of its divisors is an integer number (1033988).

Almost surely, 2^3101961 is an apocalyptic number.

It is an amenable number.

3101961 is a deficient number, since it is larger than the sum of its proper divisors (1033991).

3101961 is a wasteful number, since it uses less digits than its factorization.

3101961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1033990.

The product of its (nonzero) digits is 162, while the sum is 21.

The square root of 3101961 is about 1761.2384847033. The cubic root of 3101961 is about 145.8407126243.

Adding to 3101961 its reverse (1691013), we get a palindrome (4792974).

The spelling of 3101961 in words is "three million, one hundred one thousand, nine hundred sixty-one".