3129161 has 8 divisors (see below), whose sum is σ = 3663744. Its totient is φ = 2616480.

The previous prime is 3129121. The next prime is 3129169. The reversal of 3129161 is 1619213.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3129161 - 2¹⁸ = 2867017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3129169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5165 + ... + 5738.

It is an arithmetic number, because the mean of its divisors is an integer number (457968).

Almost surely, 2^3129161 is an apocalyptic number.

It is an amenable number.

3129161 is a deficient number, since it is larger than the sum of its proper divisors (534583).

3129161 is a wasteful number, since it uses less digits than its factorization.

3129161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10951.

The product of its digits is 324, while the sum is 23.

The square root of 3129161 is about 1768.9434699843. The cubic root of 3129161 is about 146.2657479329.

It can be divided in two parts, 31 and 29161, that added together give a palindrome (29192).

The spelling of 3129161 in words is "three million, one hundred twenty-nine thousand, one hundred sixty-one".