126421046 has 4 divisors (see below), whose sum is σ = 189631572. Its totient is φ = 63210522.

The previous prime is 126421039. The next prime is 126421049. The reversal of 126421046 is 640124621.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126421049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31605260 + ... + 31605263.

It is an arithmetic number, because the mean of its divisors is an integer number (47407893).

Almost surely, 2^126421046 is an apocalyptic number.

126421046 is a deficient number, since it is larger than the sum of its proper divisors (63210526).

126421046 is an equidigital number, since it uses as much as digits as its factorization.

126421046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63210525.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 126421046 is about 11243.7113979326. The cubic root of 126421046 is about 501.8875930179.

Adding to 126421046 its reverse (640124621), we get a palindrome (766545667).

The spelling of 126421046 in words is "one hundred twenty-six million, four hundred twenty-one thousand, forty-six".