1202191 has 2 divisors, whose sum is σ = 1202192. Its totient is φ = 1202190.

The previous prime is 1202183. The next prime is 1202219. The reversal of 1202191 is 1912021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1202191 - 2³ = 1202183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1202791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601095 + 601096.

It is an arithmetic number, because the mean of its divisors is an integer number (601096).

2^1202191 is an apocalyptic number.

1202191 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202191 is an equidigital number, since it uses as much as digits as its factorization.

1202191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 1202191 is about 1096.4447090483. Note that the first 3 decimals coincide. The cubic root of 1202191 is about 106.3304921777.

The spelling of 1202191 in words is "one million, two hundred two thousand, one hundred ninety-one".