120171145597 has 8 divisors (see below), whose sum is σ = 120408626520. Its totient is φ = 119933901120.

The previous prime is 120171145583. The next prime is 120171145607. The reversal of 120171145597 is 795541171021.

It can be written as a sum of positive squares in 4 ways, for example, as 2179582596 + 117991563001 = 46686^2 + 343499^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120171145597 is a prime.

It is a super-2 number, since 2×120171145597² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120171145517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 976179 + ... + 1092367.

It is an arithmetic number, because the mean of its divisors is an integer number (15051078315).

Almost surely, 2^120171145597 is an apocalyptic number.

It is an amenable number.

120171145597 is a deficient number, since it is larger than the sum of its proper divisors (237480923).

120171145597 is a wasteful number, since it uses less digits than its factorization.

120171145597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118223.

The product of its (nonzero) digits is 88200, while the sum is 43.

The spelling of 120171145597 in words is "one hundred twenty billion, one hundred seventy-one million, one hundred forty-five thousand, five hundred ninety-seven".