1602191 has 4 divisors (see below), whose sum is σ = 1617000. Its totient is φ = 1587384.

The previous prime is 1602187. The next prime is 1602193. The reversal of 1602191 is 1912061.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1602191 - 2² = 1602187 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1602193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7241 + ... + 7458.

It is an arithmetic number, because the mean of its divisors is an integer number (404250).

2^1602191 is an apocalyptic number.

1602191 is a deficient number, since it is larger than the sum of its proper divisors (14809).

1602191 is a wasteful number, since it uses less digits than its factorization.

1602191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14808.

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

The square root of 1602191 is about 1265.7768365711. The cubic root of 1602191 is about 117.0140728683.

The spelling of 1602191 in words is "one million, six hundred two thousand, one hundred ninety-one".