3145380578 has 4 divisors (see below), whose sum is σ = 4718070870. Its totient is φ = 1572690288.

The previous prime is 3145380521. The next prime is 3145380611. The reversal of 3145380578 is 8750835413.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8750835413 = 71 ⋅123251203.

It can be written as a sum of positive squares in only one way, i.e., 2905533409 + 239847169 = 53903^2 + 15487^2 .

It is a super-2 number, since 2×3145380578² = 19786837960919228168, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 786345143 + ... + 786345146.

Almost surely, 2^3145380578 is an apocalyptic number.

3145380578 is a deficient number, since it is larger than the sum of its proper divisors (1572690292).

3145380578 is a wasteful number, since it uses less digits than its factorization.

3145380578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1572690291.

The product of its (nonzero) digits is 403200, while the sum is 44.

The square root of 3145380578 is about 56083.6926209393. The cubic root of 3145380578 is about 1465.1802871152.

The spelling of 3145380578 in words is "three billion, one hundred forty-five million, three hundred eighty thousand, five hundred seventy-eight".