3145423 has 4 divisors (see below), whose sum is σ = 3157920. Its totient is φ = 3132928.

The previous prime is 3145399. The next prime is 3145447. The reversal of 3145423 is 3245413.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (3145399) and next prime (3145447).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3145423 is a prime.

It is a Duffinian number.

3145423 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3145394 and 3145403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3145453) 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, 5863 + ... + 6376.

It is an arithmetic number, because the mean of its divisors is an integer number (789480).

Almost surely, 2^3145423 is an apocalyptic number.

3145423 is a deficient number, since it is larger than the sum of its proper divisors (12497).

3145423 is a wasteful number, since it uses less digits than its factorization.

3145423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12496.

The product of its digits is 1440, while the sum is 22.

The square root of 3145423 is about 1773.5340425264. The cubic root of 3145423 is about 146.5186874087.

It can be divided in two parts, 31 and 45423, that added together give a palindrome (45454).

The spelling of 3145423 in words is "three million, one hundred forty-five thousand, four hundred twenty-three".