147740193517 has 4 divisors (see below), whose sum is σ = 168845935456. Its totient is φ = 126634451580.

The previous prime is 147740193487. The next prime is 147740193541. The reversal of 147740193517 is 715391047741.

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 147740193517 - 2⁷ = 147740193389 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 (147740193577) 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, 10552870959 + ... + 10552870972.

It is an arithmetic number, because the mean of its divisors is an integer number (42211483864).

Almost surely, 2^147740193517 is an apocalyptic number.

It is an amenable number.

147740193517 is a deficient number, since it is larger than the sum of its proper divisors (21105741939).

147740193517 is an equidigital number, since it uses as much as digits as its factorization.

147740193517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21105741938.

The product of its (nonzero) digits is 740880, while the sum is 49.

The spelling of 147740193517 in words is "one hundred forty-seven billion, seven hundred forty million, one hundred ninety-three thousand, five hundred seventeen".