138126412 has 6 divisors (see below), whose sum is σ = 241721228. Its totient is φ = 69063204.

The previous prime is 138126403. The next prime is 138126413. The reversal of 138126412 is 214621831.

It is not an unprimeable number, because it can be changed into a prime (138126413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17265798 + ... + 17265805.

Almost surely, 2^138126412 is an apocalyptic number.

It is an amenable number.

138126412 is a deficient number, since it is larger than the sum of its proper divisors (103594816).

138126412 is a wasteful number, since it uses less digits than its factorization.

138126412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34531607 (or 34531605 counting only the distinct ones).

The product of its digits is 2304, while the sum is 28.

The square root of 138126412 is about 11752.7193449006. The cubic root of 138126412 is about 516.9226676307.

The spelling of 138126412 in words is "one hundred thirty-eight million, one hundred twenty-six thousand, four hundred twelve".