3201219949 has 2 divisors, whose sum is σ = 3201219950. Its totient is φ = 3201219948.

The previous prime is 3201219943. The next prime is 3201220021. The reversal of 3201219949 is 9499121023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3130962025 + 70257924 = 55955^2 + 8382^2 .

It is a cyclic number.

It is not a de Polignac number, because 3201219949 - 2²⁵ = 3167665517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3201219943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1600609974 + 1600609975.

It is an arithmetic number, because the mean of its divisors is an integer number (1600609975).

Almost surely, 2^3201219949 is an apocalyptic number.

It is an amenable number.

3201219949 is a deficient number, since it is larger than the sum of its proper divisors (1).

3201219949 is an equidigital number, since it uses as much as digits as its factorization.

3201219949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 3201219949 is about 56579.3243950473. The cubic root of 3201219949 is about 1473.7998394367.

The spelling of 3201219949 in words is "three billion, two hundred one million, two hundred nineteen thousand, nine hundred forty-nine".