3145823 has 2 divisors, whose sum is σ = 3145824. Its totient is φ = 3145822.

The previous prime is 3145819. The next prime is 3145841. The reversal of 3145823 is 3285413.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3145823 - 2² = 3145819 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3145792 and 3145801.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3145873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1572911 + 1572912.

It is an arithmetic number, because the mean of its divisors is an integer number (1572912).

Almost surely, 2^3145823 is an apocalyptic number.

3145823 is a deficient number, since it is larger than the sum of its proper divisors (1).

3145823 is an equidigital number, since it uses as much as digits as its factorization.

3145823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880, while the sum is 26.

The square root of 3145823 is about 1773.6468081329. The cubic root of 3145823 is about 146.5248980191.

It can be divided in two parts, 31 and 45823, that added together give a palindrome (45854).

The spelling of 3145823 in words is "three million, one hundred forty-five thousand, eight hundred twenty-three".