126161165 has 64 divisors (see below), whose sum is σ = 185794560. Its totient is φ = 81285120.

The previous prime is 126161153. The next prime is 126161171. The reversal of 126161165 is 561161621.

It is not a de Polignac number, because 126161165 - 2¹⁸ = 125899021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 993332 + ... + 993458.

It is an arithmetic number, because the mean of its divisors is an integer number (2903040).

Almost surely, 2^126161165 is an apocalyptic number.

It is an amenable number.

126161165 is a deficient number, since it is larger than the sum of its proper divisors (59633395).

126161165 is a wasteful number, since it uses less digits than its factorization.

126161165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222.

The product of its digits is 2160, while the sum is 29.

The square root of 126161165 is about 11232.1487258672. The cubic root of 126161165 is about 501.5434506179.

It can be divided in two parts, 1261 and 61165, that added together give a palindrome (62426).

The spelling of 126161165 in words is "one hundred twenty-six million, one hundred sixty-one thousand, one hundred sixty-five".