3131049 has 4 divisors (see below), whose sum is σ = 4174736. Its totient is φ = 2087364.

The previous prime is 3131041. The next prime is 3131053. The reversal of 3131049 is 9401313.

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 3131049 - 2³ = 3131041 is a prime.

It is a D-number.

It is a Duffinian number.

3131049 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3131041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 521839 + ... + 521844.

It is an arithmetic number, because the mean of its divisors is an integer number (1043684).

Almost surely, 2^3131049 is an apocalyptic number.

It is an amenable number.

3131049 is a deficient number, since it is larger than the sum of its proper divisors (1043687).

3131049 is a wasteful number, since it uses less digits than its factorization.

3131049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043686.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 3131049 is about 1769.4770413882. The cubic root of 3131049 is about 146.2951588210.

The spelling of 3131049 in words is "three million, one hundred thirty-one thousand, forty-nine".