12031949 has 2 divisors, whose sum is σ = 12031950. Its totient is φ = 12031948.

The previous prime is 12031939. The next prime is 12031961. The reversal of 12031949 is 94913021.

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., 10843849 + 1188100 = 3293^2 + 1090^2 .

It is a cyclic number.

It is not a de Polignac number, because 12031949 - 2¹² = 12027853 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 (12031939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6015974 + 6015975.

It is an arithmetic number, because the mean of its divisors is an integer number (6015975).

Almost surely, 2^12031949 is an apocalyptic number.

It is an amenable number.

12031949 is a deficient number, since it is larger than the sum of its proper divisors (1).

12031949 is an equidigital number, since it uses as much as digits as its factorization.

12031949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 12031949 is about 3468.7099907603. The cubic root of 12031949 is about 229.1458488785.

The spelling of 12031949 in words is "twelve million, thirty-one thousand, nine hundred forty-nine".