126051 has 4 divisors (see below), whose sum is σ = 168072. Its totient is φ = 84032.

The previous prime is 126047. The next prime is 126067. The reversal of 126051 is 150621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 150621 = 3 ⋅50207.

It is a cyclic number.

It is not a de Polignac number, because 126051 - 2² = 126047 is a prime.

It is a D-number.

126051 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 126051.

It is not an unprimeable number, because it can be changed into a prime (126001) 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, 21006 + ... + 21011.

It is an arithmetic number, because the mean of its divisors is an integer number (42018).

2¹²⁶⁰⁵¹ is an apocalyptic number.

126051 is a deficient number, since it is larger than the sum of its proper divisors (42021).

126051 is an equidigital number, since it uses as much as digits as its factorization.

126051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42020.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 126051 is about 355.0366178298. The cubic root of 126051 is about 50.1397424107.

Adding to 126051 its reverse (150621), we get a palindrome (276672).

The spelling of 126051 in words is "one hundred twenty-six thousand, fifty-one".