126401633097 has 4 divisors (see below), whose sum is σ = 168535510800. Its totient is φ = 84267755396.

The previous prime is 126401633047. The next prime is 126401633177. The reversal of 126401633097 is 790336104621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 126401633097 - 2⁷ = 126401632969 is a prime.

It is a super-2 number, since 2×126401633097² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (126401633047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21066938847 + ... + 21066938852.

It is an arithmetic number, because the mean of its divisors is an integer number (42133877700).

Almost surely, 2^126401633097 is an apocalyptic number.

It is an amenable number.

126401633097 is a deficient number, since it is larger than the sum of its proper divisors (42133877703).

126401633097 is an equidigital number, since it uses as much as digits as its factorization.

126401633097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42133877702.

The product of its (nonzero) digits is 163296, while the sum is 42.

The spelling of 126401633097 in words is "one hundred twenty-six billion, four hundred one million, six hundred thirty-three thousand, ninety-seven".