31341061 has 4 divisors (see below), whose sum is σ = 31352332. Its totient is φ = 31329792.

The previous prime is 31341053. The next prime is 31341067. The reversal of 31341061 is 16014313.

It is the 2286-th star number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 22896225 + 8444836 = 4785^2 + 2906^2 .

It is a cyclic number.

It is not a de Polignac number, because 31341061 - 2³ = 31341053 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 (31341067) 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, 1855 + ... + 8131.

It is an arithmetic number, because the mean of its divisors is an integer number (7838083).

Almost surely, 2^31341061 is an apocalyptic number.

It is an amenable number.

31341061 is a deficient number, since it is larger than the sum of its proper divisors (11271).

31341061 is an equidigital number, since it uses as much as digits as its factorization.

31341061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11270.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 31341061 is about 5598.3087624746. The cubic root of 31341061 is about 315.2859115720.

Adding to 31341061 its reverse (16014313), we get a palindrome (47355374).

The spelling of 31341061 in words is "thirty-one million, three hundred forty-one thousand, sixty-one".