3148463621 has 2 divisors, whose sum is σ = 3148463622. Its totient is φ = 3148463620.

The previous prime is 3148463611. The next prime is 3148463623. The reversal of 3148463621 is 1263648413.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2341108225 + 807355396 = 48385^2 + 28414^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3148463621 is a prime.

It is a Sophie Germain prime.

Together with 3148463623, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3148463623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1574231810 + 1574231811.

It is an arithmetic number, because the mean of its divisors is an integer number (1574231811).

Almost surely, 2^3148463621 is an apocalyptic number.

It is an amenable number.

3148463621 is a deficient number, since it is larger than the sum of its proper divisors (1).

3148463621 is an equidigital number, since it uses as much as digits as its factorization.

3148463621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 38.

The square root of 3148463621 is about 56111.1719802750. The cubic root of 3148463621 is about 1465.6588448629.

The spelling of 3148463621 in words is "three billion, one hundred forty-eight million, four hundred sixty-three thousand, six hundred twenty-one".