3115228731 has 8 divisors (see below), whose sum is σ = 4212140544. Its totient is φ = 2047568040.

The previous prime is 3115228729. The next prime is 3115228741. The reversal of 3115228731 is 1378225113.

It is a happy number.

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

It is not a de Polignac number, because 3115228731 - 2¹ = 3115228729 is a prime.

It is a super-2 number, since 2×3115228731² = 19409300092895740722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3115228692 and 3115228701.

It is not an unprimeable number, because it can be changed into a prime (3115228741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7312531 + ... + 7312956.

It is an arithmetic number, because the mean of its divisors is an integer number (526517568).

Almost surely, 2^3115228731 is an apocalyptic number.

3115228731 is a deficient number, since it is larger than the sum of its proper divisors (1096911813).

3115228731 is a wasteful number, since it uses less digits than its factorization.

3115228731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14625561.

The product of its digits is 10080, while the sum is 33.

The square root of 3115228731 is about 55814.2341253555. The cubic root of 3115228731 is about 1460.4834720527.

The spelling of 3115228731 in words is "three billion, one hundred fifteen million, two hundred twenty-eight thousand, seven hundred thirty-one".