31041149 has 4 divisors (see below), whose sum is σ = 31140636. Its totient is φ = 30941664.

The previous prime is 31041121. The next prime is 31041161. The reversal of 31041149 is 94114013.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94114013 = 7 ⋅13444859.

It can be written as a sum of positive squares in 2 ways, for example, as 1338649 + 29702500 = 1157^2 + 5450^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31041149 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 (31041749) 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, 49274 + ... + 49899.

It is an arithmetic number, because the mean of its divisors is an integer number (7785159).

Almost surely, 2^31041149 is an apocalyptic number.

It is an amenable number.

31041149 is a deficient number, since it is larger than the sum of its proper divisors (99487).

31041149 is an equidigital number, since it uses as much as digits as its factorization.

31041149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99486.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 31041149 is about 5571.4584266599. The cubic root of 31041149 is about 314.2769980562.

The spelling of 31041149 in words is "thirty-one million, forty-one thousand, one hundred forty-nine".