102133191 has 8 divisors (see below), whose sum is σ = 136424304. Its totient is φ = 67965440.

The previous prime is 102133177. The next prime is 102133211. The reversal of 102133191 is 191331201.

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 102133191 - 2¹³ = 102124999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102133111) 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, 28890 + ... + 32231.

It is an arithmetic number, because the mean of its divisors is an integer number (17053038).

Almost surely, 2^102133191 is an apocalyptic number.

102133191 is a deficient number, since it is larger than the sum of its proper divisors (34291113).

102133191 is an equidigital number, since it uses as much as digits as its factorization.

102133191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61681.

The product of its (nonzero) digits is 162, while the sum is 21.

The square root of 102133191 is about 10106.0967242551. The cubic root of 102133191 is about 467.4361543589.

Adding to 102133191 its reverse (191331201), we get a palindrome (293464392).

The spelling of 102133191 in words is "one hundred two million, one hundred thirty-three thousand, one hundred ninety-one".