126225287 has 4 divisors (see below), whose sum is σ = 128294616. Its totient is φ = 124155960.

The previous prime is 126225269. The next prime is 126225301. The reversal of 126225287 is 782522621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 126225287 - 2⁶ = 126225223 is a prime.

It is a super-3 number, since 3×126225287³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126225217) 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, 1034573 + ... + 1034694.

It is an arithmetic number, because the mean of its divisors is an integer number (32073654).

Almost surely, 2^126225287 is an apocalyptic number.

126225287 is a deficient number, since it is larger than the sum of its proper divisors (2069329).

126225287 is an equidigital number, since it uses as much as digits as its factorization.

126225287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2069328.

The product of its digits is 26880, while the sum is 35.

The square root of 126225287 is about 11235.0027592342. The cubic root of 126225287 is about 501.6284068250.

The spelling of 126225287 in words is "one hundred twenty-six million, two hundred twenty-five thousand, two hundred eighty-seven".