171199007 has 4 divisors (see below), whose sum is σ = 195656016. Its totient is φ = 146742000.

The previous prime is 171198991. The next prime is 171199009. The reversal of 171199007 is 700991171.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 700991171 = 23 ⋅30477877.

It is a cyclic number.

It is not a de Polignac number, because 171199007 - 2⁴ = 171198991 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 (171199009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12228494 + ... + 12228507.

It is an arithmetic number, because the mean of its divisors is an integer number (48914004).

Almost surely, 2^171199007 is an apocalyptic number.

171199007 is a deficient number, since it is larger than the sum of its proper divisors (24457009).

171199007 is an equidigital number, since it uses as much as digits as its factorization.

171199007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24457008.

The product of its (nonzero) digits is 3969, while the sum is 35.

The square root of 171199007 is about 13084.3038408621. The cubic root of 171199007 is about 555.2651461491.

The spelling of 171199007 in words is "one hundred seventy-one million, one hundred ninety-nine thousand, seven".