3158449 has 4 divisors (see below), whose sum is σ = 3609664. Its totient is φ = 2707236.

The previous prime is 3158443. The next prime is 3158473. The reversal of 3158449 is 9448513.

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 3158449 - 2¹¹ = 3156401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3158443) 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, 225597 + ... + 225610.

It is an arithmetic number, because the mean of its divisors is an integer number (902416).

Almost surely, 2^3158449 is an apocalyptic number.

It is an amenable number.

3158449 is a deficient number, since it is larger than the sum of its proper divisors (451215).

3158449 is an equidigital number, since it uses as much as digits as its factorization.

3158449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451214.

The product of its digits is 17280, while the sum is 34.

The square root of 3158449 is about 1777.2025770857. The cubic root of 3158449 is about 146.7206659519.

Subtracting 3158449 from its reverse (9448513), we obtain a square (6290064 = 2508²).

It can be divided in two parts, 315844 and 9, that multiplied together give a square (2842596 = 1686²).

The spelling of 3158449 in words is "three million, one hundred fifty-eight thousand, four hundred forty-nine".