3121648 has 10 divisors (see below), whose sum is σ = 6048224. Its totient is φ = 1560816.

The previous prime is 3121633. The next prime is 3121663. The reversal of 3121648 is 8461213.

It is an interprime number because it is at equal distance from previous prime (3121633) and next prime (3121663).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97536 + ... + 97567.

Almost surely, 2^3121648 is an apocalyptic number.

It is an amenable number.

3121648 is a deficient number, since it is larger than the sum of its proper divisors (2926576).

3121648 is a wasteful number, since it uses less digits than its factorization.

3121648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195111 (or 195105 counting only the distinct ones).

The product of its digits is 1152, while the sum is 25.

The square root of 3121648 is about 1766.8186098182. The cubic root of 3121648 is about 146.1485945695.

The spelling of 3121648 in words is "three million, one hundred twenty-one thousand, six hundred forty-eight".