3147445349 has 2 divisors, whose sum is σ = 3147445350. Its totient is φ = 3147445348.

The previous prime is 3147445337. The next prime is 3147445363. The reversal of 3147445349 is 9435447413.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3057537025 + 89908324 = 55295^2 + 9482^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3147445349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3147445369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1573722674 + 1573722675.

It is an arithmetic number, because the mean of its divisors is an integer number (1573722675).

Almost surely, 2^3147445349 is an apocalyptic number.

It is an amenable number.

3147445349 is a deficient number, since it is larger than the sum of its proper divisors (1).

3147445349 is an equidigital number, since it uses as much as digits as its factorization.

3147445349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 725760, while the sum is 44.

The square root of 3147445349 is about 56102.0975454572. The cubic root of 3147445349 is about 1465.5008206680.

The spelling of 3147445349 in words is "three billion, one hundred forty-seven million, four hundred forty-five thousand, three hundred forty-nine".