126401633142 has 16 divisors (see below), whose sum is σ = 258969200112. Its totient is φ = 41106222080.

The previous prime is 126401633047. The next prime is 126401633177. The reversal of 126401633142 is 241336104621.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 256913643 + ... + 256914134.

It is an arithmetic number, because the mean of its divisors is an integer number (16185575007).

Almost surely, 2^126401633142 is an apocalyptic number.

126401633142 is an abundant number, since it is smaller than the sum of its proper divisors (132567566970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126401633142 is a wasteful number, since it uses less digits than its factorization.

126401633142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513827823.

The product of its (nonzero) digits is 20736, while the sum is 33.

Adding to 126401633142 its reverse (241336104621), we get a palindrome (367737737763).

The spelling of 126401633142 in words is "one hundred twenty-six billion, four hundred one million, six hundred thirty-three thousand, one hundred forty-two".