126100161 has 12 divisors (see below), whose sum is σ = 198703440. Its totient is φ = 76424280.

The previous prime is 126100159. The next prime is 126100193. The reversal of 126100161 is 161001621.

It is not a de Polignac number, because 126100161 - 2¹ = 126100159 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (126100061) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 636771 + ... + 636968.

It is an arithmetic number, because the mean of its divisors is an integer number (16558620).

Almost surely, 2^126100161 is an apocalyptic number.

126100161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

126100161 is a deficient number, since it is larger than the sum of its proper divisors (72603279).

126100161 is a wasteful number, since it uses less digits than its factorization.

126100161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1273756 (or 1273753 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 126100161 is about 11229.4327995674. The cubic root of 126100161 is about 501.4625987713.

Adding to 126100161 its reverse (161001621), we get a palindrome (287101782).

It can be divided in two parts, 1 and 26100161, that added together give a palindrome (26100162).

The spelling of 126100161 in words is "one hundred twenty-six million, one hundred thousand, one hundred sixty-one".