3119449021 has 16 divisors (see below), whose sum is σ = 3489015600. Its totient is φ = 2770149888.

The previous prime is 3119449019. The next prime is 3119449027. The reversal of 3119449021 is 1209449113.

It can be written as a sum of positive squares in 8 ways, for example, as 784996 + 3118664025 = 886^2 + 55845^2 .

It is a cyclic number.

It is not a de Polignac number, because 3119449021 - 2¹ = 3119449019 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 (3119449027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6375 + ... + 79243.

It is an arithmetic number, because the mean of its divisors is an integer number (218063475).

Almost surely, 2^3119449021 is an apocalyptic number.

It is an amenable number.

3119449021 is a deficient number, since it is larger than the sum of its proper divisors (369566579).

3119449021 is a wasteful number, since it uses less digits than its factorization.

3119449021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73008.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 3119449021 is about 55852.0279040967. The cubic root of 3119449021 is about 1461.1426941145.

The spelling of 3119449021 in words is "three billion, one hundred nineteen million, four hundred forty-nine thousand, twenty-one".