3115768145 has 24 divisors (see below), whose sum is σ = 4455454248. Its totient is φ = 2084409600.

The previous prime is 3115768141. The next prime is 3115768147. The reversal of 3115768145 is 5418675113.

It can be written as a sum of positive squares in 4 ways, for example, as 66961489 + 3048806656 = 8183^2 + 55216^2 .

It is not a de Polignac number, because 3115768145 - 2² = 3115768141 is a prime.

It is a super-2 number, since 2×3115768145² = 19416022266793482050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is not an unprimeable number, because it can be changed into a prime (3115768141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 145046 + ... + 165135.

It is an arithmetic number, because the mean of its divisors is an integer number (185643927).

Almost surely, 2^3115768145 is an apocalyptic number.

3115768145 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3115768145 is a deficient number, since it is larger than the sum of its proper divisors (1339686103).

3115768145 is a wasteful number, since it uses less digits than its factorization.

3115768145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310241 (or 310234 counting only the distinct ones).

The product of its digits is 100800, while the sum is 41.

The square root of 3115768145 is about 55819.0661423138. The cubic root of 3115768145 is about 1460.5677633235.

The spelling of 3115768145 in words is "three billion, one hundred fifteen million, seven hundred sixty-eight thousand, one hundred forty-five".