126228407 has 2 divisors, whose sum is σ = 126228408. Its totient is φ = 126228406.

The previous prime is 126228391. The next prime is 126228409. The reversal of 126228407 is 704822621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 126228407 - 2⁴ = 126228391 is a prime.

It is a super-2 number, since 2×126228407² = 31867221467515298, which contains 22 as substring.

Together with 126228409, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126228409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63114203 + 63114204.

It is an arithmetic number, because the mean of its divisors is an integer number (63114204).

Almost surely, 2^126228407 is an apocalyptic number.

126228407 is a deficient number, since it is larger than the sum of its proper divisors (1).

126228407 is an equidigital number, since it uses as much as digits as its factorization.

126228407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 126228407 is about 11235.1416101445. The cubic root of 126228407 is about 501.6325398261.

The spelling of 126228407 in words is "one hundred twenty-six million, two hundred twenty-eight thousand, four hundred seven".