126137233 has 4 divisors (see below), whose sum is σ = 130206208. Its totient is φ = 122068260.

The previous prime is 126137201. The next prime is 126137243. The reversal of 126137233 is 332731621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 126137233 - 2⁵ = 126137201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126137243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2034441 + ... + 2034502.

It is an arithmetic number, because the mean of its divisors is an integer number (32551552).

Almost surely, 2^126137233 is an apocalyptic number.

It is an amenable number.

126137233 is a deficient number, since it is larger than the sum of its proper divisors (4068975).

126137233 is an equidigital number, since it uses as much as digits as its factorization.

126137233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4068974.

The product of its digits is 4536, while the sum is 28.

The square root of 126137233 is about 11231.0833404441. The cubic root of 126137233 is about 501.5117353725.

Adding to 126137233 its reverse (332731621), we get a palindrome (458868854).

The spelling of 126137233 in words is "one hundred twenty-six million, one hundred thirty-seven thousand, two hundred thirty-three".