1652091 has 16 divisors (see below), whose sum is σ = 2539008. Its totient is φ = 936000.

The previous prime is 1652089. The next prime is 1652129. The reversal of 1652091 is 1902561.

It is not a de Polignac number, because 1652091 - 2¹ = 1652089 is a prime.

1652091 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1652011) 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 in 15 ways as a sum of consecutive naturals, for example, 2911 + ... + 3431.

It is an arithmetic number, because the mean of its divisors is an integer number (158688).

2^1652091 is an apocalyptic number.

1652091 is a deficient number, since it is larger than the sum of its proper divisors (886917).

1652091 is a wasteful number, since it uses less digits than its factorization.

1652091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682.

The product of its (nonzero) digits is 540, while the sum is 24.

The square root of 1652091 is about 1285.3369208110. The cubic root of 1652091 is about 118.2164704016.

The spelling of 1652091 in words is "one million, six hundred fifty-two thousand, ninety-one".