102032291 has 2 divisors, whose sum is σ = 102032292. Its totient is φ = 102032290.

The previous prime is 102032279. The next prime is 102032309. The reversal of 102032291 is 192230201.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102032291 is a prime.

It is not a weakly prime, because it can be changed into another prime (102032591) 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 as a sum of consecutive naturals, namely, 51016145 + 51016146.

It is an arithmetic number, because the mean of its divisors is an integer number (51016146).

Almost surely, 2^102032291 is an apocalyptic number.

102032291 is a deficient number, since it is larger than the sum of its proper divisors (1).

102032291 is an equidigital number, since it uses as much as digits as its factorization.

102032291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 102032291 is about 10101.1034545737. The cubic root of 102032291 is about 467.2821729168.

Adding to 102032291 its reverse (192230201), we get a palindrome (294262492).

The spelling of 102032291 in words is "one hundred two million, thirty-two thousand, two hundred ninety-one".