1090457 has 2 divisors, whose sum is σ = 1090458. Its totient is φ = 1090456.

The previous prime is 1090423. The next prime is 1090459. The reversal of 1090457 is 7540901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1073296 + 17161 = 1036^2 + 131^2 .

It is an emirp because it is prime and its reverse (7540901) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1090457 - 2¹² = 1086361 is a prime.

Together with 1090459, 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 (1090459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 545228 + 545229.

It is an arithmetic number, because the mean of its divisors is an integer number (545229).

2^1090457 is an apocalyptic number.

It is an amenable number.

1090457 is a deficient number, since it is larger than the sum of its proper divisors (1).

1090457 is an equidigital number, since it uses as much as digits as its factorization.

1090457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 1090457 is about 1044.2494912615. The cubic root of 1090457 is about 102.9286274643.

The spelling of 1090457 in words is "one million, ninety thousand, four hundred fifty-seven".