126751155051 has 4 divisors (see below), whose sum is σ = 169001540072. Its totient is φ = 84500770032.

The previous prime is 126751155043. The next prime is 126751155061. The reversal of 126751155051 is 150551157621.

It is a happy number.

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

It is not a de Polignac number, because 126751155051 - 2³ = 126751155043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126751155001) 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, 21125192506 + ... + 21125192511.

It is an arithmetic number, because the mean of its divisors is an integer number (42250385018).

Almost surely, 2^126751155051 is an apocalyptic number.

126751155051 is a deficient number, since it is larger than the sum of its proper divisors (42250385021).

126751155051 is an equidigital number, since it uses as much as digits as its factorization.

126751155051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42250385020.

The product of its (nonzero) digits is 52500, while the sum is 39.

The spelling of 126751155051 in words is "one hundred twenty-six billion, seven hundred fifty-one million, one hundred fifty-five thousand, fifty-one".