126122135 has 4 divisors (see below), whose sum is σ = 151346568. Its totient is φ = 100897704.

The previous prime is 126122123. The next prime is 126122149. The reversal of 126122135 is 531221621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 531221621 = 7 ⋅75888803.

It is a cyclic number.

It is not a de Polignac number, because 126122135 - 2²⁶ = 59013271 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 126122135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12612209 + ... + 12612218.

It is an arithmetic number, because the mean of its divisors is an integer number (37836642).

Almost surely, 2^126122135 is an apocalyptic number.

126122135 is a deficient number, since it is larger than the sum of its proper divisors (25224433).

126122135 is an equidigital number, since it uses as much as digits as its factorization.

126122135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25224432.

The product of its digits is 720, while the sum is 23.

The square root of 126122135 is about 11230.4111678959. The cubic root of 126122135 is about 501.4917250866.

Adding to 126122135 its reverse (531221621), we get a palindrome (657343756).

The spelling of 126122135 in words is "one hundred twenty-six million, one hundred twenty-two thousand, one hundred thirty-five".