3145478 has 8 divisors (see below), whose sum is σ = 5392272. Its totient is φ = 1348056.

The previous prime is 3145463. The next prime is 3145487. The reversal of 3145478 is 8745413.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112325 + ... + 112352.

It is an arithmetic number, because the mean of its divisors is an integer number (674034).

Almost surely, 2^3145478 is an apocalyptic number.

3145478 is a deficient number, since it is larger than the sum of its proper divisors (2246794).

3145478 is a wasteful number, since it uses less digits than its factorization.

3145478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224686.

The product of its digits is 13440, while the sum is 32.

The square root of 3145478 is about 1773.5495482224. The cubic root of 3145478 is about 146.5195413988.

The spelling of 3145478 in words is "three million, one hundred forty-five thousand, four hundred seventy-eight".