3148821893 has 8 divisors (see below), whose sum is σ = 3613712640. Its totient is φ = 2687695920.

The previous prime is 3148821887. The next prime is 3148821901. The reversal of 3148821893 is 3981288413.

It is a happy number.

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

It is not a de Polignac number, because 3148821893 - 2⁶ = 3148821829 is a prime.

It is a super-2 number, since 2×3148821893² = 19830158627672206898, 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 (3148821803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 939398 + ... + 942743.

It is an arithmetic number, because the mean of its divisors is an integer number (451714080).

Almost surely, 2^3148821893 is an apocalyptic number.

It is an amenable number.

3148821893 is a deficient number, since it is larger than the sum of its proper divisors (464890747).

3148821893 is a wasteful number, since it uses less digits than its factorization.

3148821893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1882387.

The product of its digits is 331776, while the sum is 47.

The square root of 3148821893 is about 56114.3644087679. The cubic root of 3148821893 is about 1465.7144364860.

The spelling of 3148821893 in words is "three billion, one hundred forty-eight million, eight hundred twenty-one thousand, eight hundred ninety-three".