1652491 has 2 divisors, whose sum is σ = 1652492. Its totient is φ = 1652490.

The previous prime is 1652489. The next prime is 1652503. The reversal of 1652491 is 1942561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1652491 - 2¹ = 1652489 is a prime.

Together with 1652489, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1652291) 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 as a sum of consecutive naturals, namely, 826245 + 826246.

It is an arithmetic number, because the mean of its divisors is an integer number (826246).

2^1652491 is an apocalyptic number.

1652491 is a deficient number, since it is larger than the sum of its proper divisors (1).

1652491 is an equidigital number, since it uses as much as digits as its factorization.

1652491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 28.

The square root of 1652491 is about 1285.4925126192. The cubic root of 1652491 is about 118.2260103871.

The spelling of 1652491 in words is "one million, six hundred fifty-two thousand, four hundred ninety-one".