1121457 has 8 divisors (see below), whose sum is σ = 1560384. Its totient is φ = 715088.

The previous prime is 1121453. The next prime is 1121509. The reversal of 1121457 is 7541211.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1121457 - 2² = 1121453 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1121453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8058 + ... + 8195.

It is an arithmetic number, because the mean of its divisors is an integer number (195048).

2^1121457 is an apocalyptic number.

It is an amenable number.

1121457 is a deficient number, since it is larger than the sum of its proper divisors (438927).

1121457 is a wasteful number, since it uses less digits than its factorization.

1121457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16279.

The product of its digits is 280, while the sum is 21.

The square root of 1121457 is about 1058.9886684946. The cubic root of 1121457 is about 103.8948950469.

Adding to 1121457 its reverse (7541211), we get a palindrome (8662668).

The spelling of 1121457 in words is "one million, one hundred twenty-one thousand, four hundred fifty-seven".