109190902187 has 2 divisors, whose sum is σ = 109190902188. Its totient is φ = 109190902186.

The previous prime is 109190902181. The next prime is 109190902313. The reversal of 109190902187 is 781209091901.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 109190902187 - 2¹⁰ = 109190901163 is a prime.

It is a super-2 number, since 2×109190902187² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (109190902181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54595451093 + 54595451094.

It is an arithmetic number, because the mean of its divisors is an integer number (54595451094).

Almost surely, 2^109190902187 is an apocalyptic number.

109190902187 is a deficient number, since it is larger than the sum of its proper divisors (1).

109190902187 is an equidigital number, since it uses as much as digits as its factorization.

109190902187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 47.

The spelling of 109190902187 in words is "one hundred nine billion, one hundred ninety million, nine hundred two thousand, one hundred eighty-seven".