6138030731 has 16 divisors (see below), whose sum is σ = 7389500160. Its totient is φ = 4980618720.

The previous prime is 6138030697. The next prime is 6138030737. The reversal of 6138030731 is 1370308316.

It is not a de Polignac number, because 6138030731 - 2⁶ = 6138030667 is a prime.

It is a super-2 number, since 2×6138030731² = 75350842509400788722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6138030737) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173621 + ... + 205961.

It is an arithmetic number, because the mean of its divisors is an integer number (461843760).

Almost surely, 2^6138030731 is an apocalyptic number.

6138030731 is a deficient number, since it is larger than the sum of its proper divisors (1251469429).

6138030731 is a wasteful number, since it uses less digits than its factorization.

6138030731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33794.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 6138030731 is about 78345.5852680928. The cubic root of 6138030731 is about 1830.9494442170.

The spelling of 6138030731 in words is "six billion, one hundred thirty-eight million, thirty thousand, seven hundred thirty-one".