102172001 has 8 divisors (see below), whose sum is σ = 106404864. Its totient is φ = 97997760.

The previous prime is 102171991. The next prime is 102172039. The reversal of 102172001 is 100271201.

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 102172001 - 2¹⁴ = 102155617 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (102172051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11081 + ... + 18086.

It is an arithmetic number, because the mean of its divisors is an integer number (13300608).

Almost surely, 2^102172001 is an apocalyptic number.

It is an amenable number.

102172001 is a deficient number, since it is larger than the sum of its proper divisors (4232863).

102172001 is a wasteful number, since it uses less digits than its factorization.

102172001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29311.

The product of its (nonzero) digits is 28, while the sum is 14.

The square root of 102172001 is about 10108.0166699506. The cubic root of 102172001 is about 467.4953545060.

The spelling of 102172001 in words is "one hundred two million, one hundred seventy-two thousand, one".