3161791 has 4 divisors (see below), whose sum is σ = 3192592. Its totient is φ = 3130992.

The previous prime is 3161777. The next prime is 3161801. The reversal of 3161791 is 1971613.

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

It is a cyclic number.

It is not a de Polignac number, because 3161791 - 2¹¹ = 3159743 is a prime.

It is a Duffinian number.

3161791 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3161491) 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, 15246 + ... + 15451.

It is an arithmetic number, because the mean of its divisors is an integer number (798148).

Almost surely, 2^3161791 is an apocalyptic number.

3161791 is a deficient number, since it is larger than the sum of its proper divisors (30801).

3161791 is a wasteful number, since it uses less digits than its factorization.

3161791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30800.

The product of its digits is 1134, while the sum is 28.

The square root of 3161791 is about 1778.1425702120. The cubic root of 3161791 is about 146.7723967879.

The spelling of 3161791 in words is "three million, one hundred sixty-one thousand, seven hundred ninety-one".