3145689 has 8 divisors (see below), whose sum is σ = 4660320. Its totient is φ = 2097108.

The previous prime is 3145679. The next prime is 3145711. The reversal of 3145689 is 9865413.

3145689 is nontrivially palindromic in base 8.

It is not a de Polignac number, because 3145689 - 2⁴ = 3145673 is a prime.

3145689 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3145609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58227 + ... + 58280.

It is an arithmetic number, because the mean of its divisors is an integer number (582540).

Almost surely, 2^3145689 is an apocalyptic number.

It is an amenable number.

3145689 is a deficient number, since it is larger than the sum of its proper divisors (1514631).

3145689 is a wasteful number, since it uses less digits than its factorization.

3145689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116516 (or 116510 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 3145689 is about 1773.6090324533. The cubic root of 3145689 is about 146.5228175233.

The spelling of 3145689 in words is "three million, one hundred forty-five thousand, six hundred eighty-nine".