126140165 has 8 divisors (see below), whose sum is σ = 157949568. Its totient is φ = 96524560.

The previous prime is 126140129. The next prime is 126140191. The reversal of 126140165 is 561041621.

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

It is not a de Polignac number, because 126140165 - 2¹⁰ = 126139141 is a prime.

It is a super-2 number, since 2×126140165² = 31822682452454450, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 548321 + ... + 548550.

It is an arithmetic number, because the mean of its divisors is an integer number (19743696).

Almost surely, 2^126140165 is an apocalyptic number.

It is an amenable number.

126140165 is a deficient number, since it is larger than the sum of its proper divisors (31809403).

126140165 is a wasteful number, since it uses less digits than its factorization.

126140165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1096899.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 126140165 is about 11231.2138702813. The cubic root of 126140165 is about 501.5156211430.

Adding to 126140165 its reverse (561041621), we get a palindrome (687181786).

The spelling of 126140165 in words is "one hundred twenty-six million, one hundred forty thousand, one hundred sixty-five".