126140117 has 4 divisors (see below), whose sum is σ = 126501900. Its totient is φ = 125778336.

The previous prime is 126140093. The next prime is 126140129. The reversal of 126140117 is 711041621.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 85359121 + 40780996 = 9239^2 + 6386^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126140117 is a prime.

It is a super-2 number, since 2×126140117² = 31822658233547378, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 126140092 and 126140101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126143117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180368 + ... + 181065.

It is an arithmetic number, because the mean of its divisors is an integer number (31625475).

Almost surely, 2^126140117 is an apocalyptic number.

It is an amenable number.

126140117 is a deficient number, since it is larger than the sum of its proper divisors (361783).

126140117 is an equidigital number, since it uses as much as digits as its factorization.

126140117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361782.

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 126140117 is about 11231.2117333794. The cubic root of 126140117 is about 501.5155575293.

Adding to 126140117 its reverse (711041621), we get a palindrome (837181738).

The spelling of 126140117 in words is "one hundred twenty-six million, one hundred forty thousand, one hundred seventeen".