3161489 has 4 divisors (see below), whose sum is σ = 3235056. Its totient is φ = 3087924.

The previous prime is 3161479. The next prime is 3161491. The reversal of 3161489 is 9841613.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9841613 = 59 ⋅166807.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3161489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3161449) 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, 36719 + ... + 36804.

It is an arithmetic number, because the mean of its divisors is an integer number (808764).

Almost surely, 2^3161489 is an apocalyptic number.

It is an amenable number.

3161489 is a deficient number, since it is larger than the sum of its proper divisors (73567).

3161489 is an equidigital number, since it uses as much as digits as its factorization.

3161489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73566.

The product of its digits is 5184, while the sum is 32.

The square root of 3161489 is about 1778.0576481093. The cubic root of 3161489 is about 146.7677236269.

The spelling of 3161489 in words is "three million, one hundred sixty-one thousand, four hundred eighty-nine".