3145858 has 4 divisors (see below), whose sum is σ = 4718790. Its totient is φ = 1572928.

The previous prime is 3145841. The next prime is 3145873. The reversal of 3145858 is 8585413.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8585413 = 1559 ⋅5507.

It can be written as a sum of positive squares in only one way, i.e., 2732409 + 413449 = 1653^2 + 643^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 786463 + ... + 786466.

Almost surely, 2^3145858 is an apocalyptic number.

3145858 is a deficient number, since it is larger than the sum of its proper divisors (1572932).

3145858 is a wasteful number, since it uses less digits than its factorization.

3145858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1572931.

The product of its digits is 19200, while the sum is 34.

The square root of 3145858 is about 1773.6566747824. The cubic root of 3145858 is about 146.5254414225.

The spelling of 3145858 in words is "three million, one hundred forty-five thousand, eight hundred fifty-eight".