3145378 has 4 divisors (see below), whose sum is σ = 4718070. Its totient is φ = 1572688.

The previous prime is 3145367. The next prime is 3145399. The reversal of 3145378 is 8735413.

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

It can be written as a sum of positive squares in only one way, i.e., 3143529 + 1849 = 1773^2 + 43^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 786343 + ... + 786346.

Almost surely, 2^3145378 is an apocalyptic number.

3145378 is a deficient number, since it is larger than the sum of its proper divisors (1572692).

3145378 is a wasteful number, since it uses less digits than its factorization.

3145378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1572691.

The product of its digits is 10080, while the sum is 31.

The square root of 3145378 is about 1773.5213559470. The cubic root of 3145378 is about 146.5179886821.

The spelling of 3145378 in words is "three million, one hundred forty-five thousand, three hundred seventy-eight".