1535791 has 2 divisors, whose sum is σ = 1535792. Its totient is φ = 1535790.

The previous prime is 1535777. The next prime is 1535803. The reversal of 1535791 is 1975351.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1535791 - 2⁷ = 1535663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1535741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 767895 + 767896.

It is an arithmetic number, because the mean of its divisors is an integer number (767896).

2^1535791 is an apocalyptic number.

1535791 is a deficient number, since it is larger than the sum of its proper divisors (1).

1535791 is an equidigital number, since it uses as much as digits as its factorization.

1535791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4725, while the sum is 31.

The square root of 1535791 is about 1239.2703498430. The cubic root of 1535791 is about 115.3747322247.

The spelling of 1535791 in words is "one million, five hundred thirty-five thousand, seven hundred ninety-one".