126142047 has 12 divisors (see below), whose sum is σ = 182606424. Its totient is φ = 83909520.

The previous prime is 126142043. The next prime is 126142061. The reversal of 126142047 is 740241621.

126142047 is a `hidden beast` number, since 1 + 2 + 614 + 2 + 0 + 47 = 666.

It is not a de Polignac number, because 126142047 - 2² = 126142043 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 126142047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126142043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11053 + ... + 19350.

It is an arithmetic number, because the mean of its divisors is an integer number (15217202).

Almost surely, 2^126142047 is an apocalyptic number.

126142047 is a deficient number, since it is larger than the sum of its proper divisors (56464377).

126142047 is a wasteful number, since it uses less digits than its factorization.

126142047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30870 (or 30867 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 126142047 is about 11231.2976543229. The cubic root of 126142047 is about 501.5181153201.

Adding to 126142047 its reverse (740241621), we get a palindrome (866383668).

The spelling of 126142047 in words is "one hundred twenty-six million, one hundred forty-two thousand, forty-seven".