1042091 has 2 divisors, whose sum is σ = 1042092. Its totient is φ = 1042090.

The previous prime is 1042087. The next prime is 1042099. The reversal of 1042091 is 1902401.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1042091 - 2² = 1042087 is a prime.

It is not a weakly prime, because it can be changed into another prime (1042099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521045 + 521046.

It is an arithmetic number, because the mean of its divisors is an integer number (521046).

2^1042091 is an apocalyptic number.

1042091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042091 is an equidigital number, since it uses as much as digits as its factorization.

1042091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1042091 is about 1020.8285850230. The cubic root of 1042091 is about 101.3837960898.

Adding to 1042091 its reverse (1902401), we get a palindrome (2944492).

The spelling of 1042091 in words is "one million, forty-two thousand, ninety-one".