191000902 has 16 divisors (see below), whose sum is σ = 297306000. Its totient is φ = 91919520.

The previous prime is 191000897. The next prime is 191000911. The reversal of 191000902 is 209000191.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 14224 + ... + 24172.

It is an arithmetic number, because the mean of its divisors is an integer number (18581625).

Almost surely, 2^191000902 is an apocalyptic number.

191000902 is a deficient number, since it is larger than the sum of its proper divisors (106305098).

191000902 is a wasteful number, since it uses less digits than its factorization.

191000902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10311.

The product of its (nonzero) digits is 162, while the sum is 22.

The square root of 191000902 is about 13820.3075942614. The cubic root of 191000902 is about 575.8974286074.

The spelling of 191000902 in words is "one hundred ninety-one million, nine hundred two", and thus it is an aban number.