172100263147 has 4 divisors (see below), whose sum is σ = 182223808056. Its totient is φ = 161976718240.

The previous prime is 172100263141. The next prime is 172100263253. The reversal of 172100263147 is 741362001271.

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

It is a cyclic number.

It is not a de Polignac number, because 172100263147 - 2⁷ = 172100263019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172100263141) 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, 5061772429 + ... + 5061772462.

It is an arithmetic number, because the mean of its divisors is an integer number (45555952014).

Almost surely, 2^172100263147 is an apocalyptic number.

172100263147 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

172100263147 is a deficient number, since it is larger than the sum of its proper divisors (10123544909).

172100263147 is a wasteful number, since it uses less digits than its factorization.

172100263147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10123544908.

The product of its (nonzero) digits is 14112, while the sum is 34.

The spelling of 172100263147 in words is "one hundred seventy-two billion, one hundred million, two hundred sixty-three thousand, one hundred forty-seven".