172540148705 has 8 divisors (see below), whose sum is σ = 207051508800. Its totient is φ = 138029898736.

The previous prime is 172540148623. The next prime is 172540148717. The reversal of 172540148705 is 507841045271.

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

It is a cyclic number.

It is not a de Polignac number, because 172540148705 - 2¹⁴ = 172540132321 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114836 + ... + 598554.

It is an arithmetic number, because the mean of its divisors is an integer number (25881438600).

Almost surely, 2^172540148705 is an apocalyptic number.

It is an amenable number.

172540148705 is a deficient number, since it is larger than the sum of its proper divisors (34511360095).

172540148705 is an equidigital number, since it uses as much as digits as its factorization.

172540148705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555063.

The product of its (nonzero) digits is 313600, while the sum is 44.

The spelling of 172540148705 in words is "one hundred seventy-two billion, five hundred forty million, one hundred forty-eight thousand, seven hundred five".