3145441213 has 8 divisors (see below), whose sum is σ = 3184990200. Its totient is φ = 3106037760.

The previous prime is 3145441177. The next prime is 3145441237. The reversal of 3145441213 is 3121445413.

It can be written as a sum of positive squares in 4 ways, for example, as 227496889 + 2917944324 = 15083^2 + 54018^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3145441213 - 2²⁵ = 3111886781 is a prime.

It is a super-2 number, since 2×3145441213² = 19787600848877822738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3145441513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7443 + ... + 79663.

It is an arithmetic number, because the mean of its divisors is an integer number (398123775).

Almost surely, 2^3145441213 is an apocalyptic number.

It is an amenable number.

3145441213 is a deficient number, since it is larger than the sum of its proper divisors (39548987).

3145441213 is an equidigital number, since it uses as much as digits as its factorization.

3145441213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72767.

The product of its digits is 5760, while the sum is 28.

The square root of 3145441213 is about 56084.2331943658. The cubic root of 3145441213 is about 1465.1897020475.

Adding to 3145441213 its reverse (3121445413), we get a palindrome (6266886626).

The spelling of 3145441213 in words is "three billion, one hundred forty-five million, four hundred forty-one thousand, two hundred thirteen".