3158491 has 12 divisors (see below), whose sum is σ = 3728712. Its totient is φ = 2667168.

The previous prime is 3158489. The next prime is 3158509. The reversal of 3158491 is 1948513.

3158491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3158491 - 2¹ = 3158489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3158401) 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 11 ways as a sum of consecutive naturals, for example, 3136 + ... + 4018.

It is an arithmetic number, because the mean of its divisors is an integer number (310726).

Almost surely, 2^3158491 is an apocalyptic number.

3158491 is a deficient number, since it is larger than the sum of its proper divisors (570221).

3158491 is an equidigital number, since it uses as much as digits as its factorization.

3158491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970 (or 963 counting only the distinct ones).

The product of its digits is 4320, while the sum is 31.

The square root of 3158491 is about 1777.2143933696. The cubic root of 3158491 is about 146.7213162965.

The spelling of 3158491 in words is "three million, one hundred fifty-eight thousand, four hundred ninety-one".