102132191 has 8 divisors (see below), whose sum is σ = 116909184. Its totient is φ = 87401880.

The previous prime is 102132157. The next prime is 102132193. The reversal of 102132191 is 191231201.

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 102132191 - 2¹⁴ = 102115807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102132193) 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, 6845 + ... + 15846.

It is an arithmetic number, because the mean of its divisors is an integer number (14613648).

Almost surely, 2^102132191 is an apocalyptic number.

102132191 is a deficient number, since it is larger than the sum of its proper divisors (14776993).

102132191 is an equidigital number, since it uses as much as digits as its factorization.

102132191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23341.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 102132191 is about 10106.0472490485. The cubic root of 102132191 is about 467.4346287769.

Adding to 102132191 its reverse (191231201), we get a palindrome (293363392).

The spelling of 102132191 in words is "one hundred two million, one hundred thirty-two thousand, one hundred ninety-one".