126042243 has 16 divisors (see below), whose sum is σ = 170263296. Its totient is φ = 82930400.

The previous prime is 126042221. The next prime is 126042247. The reversal of 126042243 is 342240621.

It is a cyclic number.

It is not a de Polignac number, because 126042243 - 2⁵ = 126042211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126042247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151996 + ... + 152822.

It is an arithmetic number, because the mean of its divisors is an integer number (10641456).

Almost surely, 2^126042243 is an apocalyptic number.

126042243 is a deficient number, since it is larger than the sum of its proper divisors (44221053).

126042243 is a wasteful number, since it uses less digits than its factorization.

126042243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1434.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 126042243 is about 11226.8536554103. The cubic root of 126042243 is about 501.3858128304.

Adding to 126042243 its reverse (342240621), we get a palindrome (468282864).

The spelling of 126042243 in words is "one hundred twenty-six million, forty-two thousand, two hundred forty-three".