126427407 has 4 divisors (see below), whose sum is σ = 168569880. Its totient is φ = 84284936.

The previous prime is 126427403. The next prime is 126427447. The reversal of 126427407 is 704724621.

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 126427407 - 2² = 126427403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126427403) 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, 21071232 + ... + 21071237.

It is an arithmetic number, because the mean of its divisors is an integer number (42142470).

Almost surely, 2^126427407 is an apocalyptic number.

126427407 is a deficient number, since it is larger than the sum of its proper divisors (42142473).

126427407 is an equidigital number, since it uses as much as digits as its factorization.

126427407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42142472.

The product of its (nonzero) digits is 18816, while the sum is 33.

The square root of 126427407 is about 11243.9942636058. The cubic root of 126427407 is about 501.8960105336.

The spelling of 126427407 in words is "one hundred twenty-six million, four hundred twenty-seven thousand, four hundred seven".