126610201 has 4 divisors (see below), whose sum is σ = 130976100. Its totient is φ = 122244304.

The previous prime is 126610153. The next prime is 126610213. The reversal of 126610201 is 102016621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 102016621 = 7 ⋅14573803.

It can be written as a sum of positive squares in 2 ways, for example, as 75272976 + 51337225 = 8676^2 + 7165^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126610201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126610291) 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, 2182906 + ... + 2182963.

It is an arithmetic number, because the mean of its divisors is an integer number (32744025).

Almost surely, 2^126610201 is an apocalyptic number.

It is an amenable number.

126610201 is a deficient number, since it is larger than the sum of its proper divisors (4365899).

126610201 is an equidigital number, since it uses as much as digits as its factorization.

126610201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4365898.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 126610201 is about 11252.1198447226. The cubic root of 126610201 is about 502.1377814213.

Adding to 126610201 its reverse (102016621), we get a palindrome (228626822).

The spelling of 126610201 in words is "one hundred twenty-six million, six hundred ten thousand, two hundred one".