7031149 has 4 divisors (see below), whose sum is σ = 7444764. Its totient is φ = 6617536.

The previous prime is 7031113. The next prime is 7031173. The reversal of 7031149 is 9411307.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9411307 = 199 ⋅47293.

It can be written as a sum of positive squares in 2 ways, for example, as 5673924 + 1357225 = 2382^2 + 1165^2 .

It is a cyclic number.

It is not a de Polignac number, because 7031149 - 2⁹ = 7030637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7031749) 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, 206782 + ... + 206815.

It is an arithmetic number, because the mean of its divisors is an integer number (1861191).

Almost surely, 2^7031149 is an apocalyptic number.

It is an amenable number.

7031149 is a deficient number, since it is larger than the sum of its proper divisors (413615).

7031149 is a wasteful number, since it uses less digits than its factorization.

7031149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413614.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 7031149 is about 2651.6313846385. The cubic root of 7031149 is about 191.5764407932.

The spelling of 7031149 in words is "seven million, thirty-one thousand, one hundred forty-nine".