32013491 has 2 divisors, whose sum is σ = 32013492. Its totient is φ = 32013490.

The previous prime is 32013481. The next prime is 32013511. The reversal of 32013491 is 19431023.

It is a weak prime.

It is an emirp because it is prime and its reverse (19431023) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 32013491 - 2⁶ = 32013427 is a prime.

It is not a weakly prime, because it can be changed into another prime (32013481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16006745 + 16006746.

It is an arithmetic number, because the mean of its divisors is an integer number (16006746).

Almost surely, 2^32013491 is an apocalyptic number.

32013491 is a deficient number, since it is larger than the sum of its proper divisors (1).

32013491 is an equidigital number, since it uses as much as digits as its factorization.

32013491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 32013491 is about 5658.0465710349. The cubic root of 32013491 is about 317.5248200160.

The spelling of 32013491 in words is "thirty-two million, thirteen thousand, four hundred ninety-one".