147112175520021 has 4 divisors (see below), whose sum is σ = 196149567360032. Its totient is φ = 98074783680012.

The previous prime is 147112175520017. The next prime is 147112175520043. The reversal of 147112175520021 is 120025571211741.

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 not a de Polignac number, because 147112175520021 - 2² = 147112175520017 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147112175520001) 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, 24518695920001 + ... + 24518695920006.

It is an arithmetic number, because the mean of its divisors is an integer number (49037391840008).

Almost surely, 2^{147112175520021} is an apocalyptic number.

It is an amenable number.

147112175520021 is a deficient number, since it is larger than the sum of its proper divisors (49037391840011).

147112175520021 is an equidigital number, since it uses as much as digits as its factorization.

147112175520021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49037391840010.

The product of its (nonzero) digits is 39200, while the sum is 39.

The spelling of 147112175520021 in words is "one hundred forty-seven trillion, one hundred twelve billion, one hundred seventy-five million, five hundred twenty thousand, twenty-one".