1141457 has 4 divisors (see below), whose sum is σ = 1144320. Its totient is φ = 1138596.

The previous prime is 1141453. The next prime is 1141477. The reversal of 1141457 is 7541411.

It is a happy number.

1141457 is nontrivially palindromic in base 2.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7541411 = 73 ⋅103307.

It is a cyclic number.

It is not a de Polignac number, because 1141457 - 2² = 1141453 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1141453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 713 + ... + 1670.

It is an arithmetic number, because the mean of its divisors is an integer number (286080).

2^1141457 is an apocalyptic number.

It is an amenable number.

1141457 is a deficient number, since it is larger than the sum of its proper divisors (2863).

1141457 is an equidigital number, since it uses as much as digits as its factorization.

1141457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2862.

The product of its digits is 560, while the sum is 23.

The square root of 1141457 is about 1068.3899100984. The cubic root of 1141457 is about 104.5088780107.

Adding to 1141457 its reverse (7541411), we get a palindrome (8682868).

The spelling of 1141457 in words is "one million, one hundred forty-one thousand, four hundred fifty-seven".