3102421249 has 4 divisors (see below), whose sum is σ = 3155004720. Its totient is φ = 3049837780.

The previous prime is 3102421243. The next prime is 3102421253. The reversal of 3102421249 is 9421242013.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9421242013 = 16903 ⋅557371.

It is a cyclic number.

It is not a de Polignac number, because 3102421249 - 2⁷ = 3102421121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3102421243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26291647 + ... + 26291764.

It is an arithmetic number, because the mean of its divisors is an integer number (788751180).

Almost surely, 2^3102421249 is an apocalyptic number.

It is an amenable number.

3102421249 is a deficient number, since it is larger than the sum of its proper divisors (52583471).

3102421249 is an equidigital number, since it uses as much as digits as its factorization.

3102421249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52583470.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 3102421249 is about 55699.3828421824. The cubic root of 3102421249 is about 1458.4792523625.

The spelling of 3102421249 in words is "three billion, one hundred two million, four hundred twenty-one thousand, two hundred forty-nine".