3115475378 has 4 divisors (see below), whose sum is σ = 4673213070. Its totient is φ = 1557737688.

The previous prime is 3115475357. The next prime is 3115475383. The reversal of 3115475378 is 8735745113.

3115475378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 1870303009 + 1245172369 = 43247^2 + 35287^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 778868843 + ... + 778868846.

Almost surely, 2^3115475378 is an apocalyptic number.

3115475378 is a deficient number, since it is larger than the sum of its proper divisors (1557737692).

3115475378 is a wasteful number, since it uses less digits than its factorization.

3115475378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1557737691.

The product of its digits is 352800, while the sum is 44.

The square root of 3115475378 is about 55816.4436165544. The cubic root of 3115475378 is about 1460.5220154355.

The spelling of 3115475378 in words is "three billion, one hundred fifteen million, four hundred seventy-five thousand, three hundred seventy-eight".