5122188138 has 32 divisors (see below), whose sum is σ = 10509774912. Its totient is φ = 1663286400.

The previous prime is 5122188109. The next prime is 5122188139. The reversal of 5122188138 is 8318812215.

It is a super-2 number, since 2×5122188138² = 52473622642135814088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5122188096 and 5122188105.

It is not an unprimeable number, because it can be changed into a prime (5122188139) 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, 154920 + ... + 185052.

It is an arithmetic number, because the mean of its divisors is an integer number (328430466).

Almost surely, 2^5122188138 is an apocalyptic number.

5122188138 is an abundant number, since it is smaller than the sum of its proper divisors (5387586774).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5122188138 is a wasteful number, since it uses less digits than its factorization.

5122188138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30870.

The product of its digits is 30720, while the sum is 39.

The square root of 5122188138 is about 71569.4637258098. The cubic root of 5122188138 is about 1723.7932483277.

The spelling of 5122188138 in words is "five billion, one hundred twenty-two million, one hundred eighty-eight thousand, one hundred thirty-eight".