31132349 has 2 divisors, whose sum is σ = 31132350. Its totient is φ = 31132348.

The previous prime is 31132337. The next prime is 31132373. The reversal of 31132349 is 94323113.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21921124 + 9211225 = 4682^2 + 3035^2 .

It is an emirp because it is prime and its reverse (94323113) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31132349 - 2⁴ = 31132333 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31132249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15566174 + 15566175.

It is an arithmetic number, because the mean of its divisors is an integer number (15566175).

Almost surely, 2^31132349 is an apocalyptic number.

It is an amenable number.

31132349 is a deficient number, since it is larger than the sum of its proper divisors (1).

31132349 is an equidigital number, since it uses as much as digits as its factorization.

31132349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944, while the sum is 26.

The square root of 31132349 is about 5579.6369953609. The cubic root of 31132349 is about 314.5844827855.

The spelling of 31132349 in words is "thirty-one million, one hundred thirty-two thousand, three hundred forty-nine".