3145488893 has 4 divisors (see below), whose sum is σ = 3311040960. Its totient is φ = 2979936828.

The previous prime is 3145488859. The next prime is 3145488943. The reversal of 3145488893 is 3988845413.

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: 3988845413 = 7 ⋅569835059.

It is a cyclic number.

It is not a de Polignac number, because 3145488893 - 2⁸ = 3145488637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3145488803) 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, 82776005 + ... + 82776042.

It is an arithmetic number, because the mean of its divisors is an integer number (827760240).

Almost surely, 2^3145488893 is an apocalyptic number.

It is an amenable number.

3145488893 is a deficient number, since it is larger than the sum of its proper divisors (165552067).

3145488893 is a wasteful number, since it uses less digits than its factorization.

3145488893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165552066.

The product of its digits is 3317760, while the sum is 53.

The square root of 3145488893 is about 56084.6582676582. The cubic root of 3145488893 is about 1465.1971053430.

The spelling of 3145488893 in words is "three billion, one hundred forty-five million, four hundred eighty-eight thousand, eight hundred ninety-three".