1157441 has 4 divisors (see below), whose sum is σ = 1161984. Its totient is φ = 1152900.

The previous prime is 1157437. The next prime is 1157449. The reversal of 1157441 is 1447511.

It is a happy number.

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: 1447511 = 13 ⋅111347.

It is a cyclic number.

It is not a de Polignac number, because 1157441 - 2² = 1157437 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1157449) 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, 1865 + ... + 2406.

It is an arithmetic number, because the mean of its divisors is an integer number (290496).

2^1157441 is an apocalyptic number.

It is an amenable number.

1157441 is a deficient number, since it is larger than the sum of its proper divisors (4543).

1157441 is an equidigital number, since it uses as much as digits as its factorization.

1157441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4542.

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

The square root of 1157441 is about 1075.8443195928. The cubic root of 1157441 is about 104.9944365911.

The spelling of 1157441 in words is "one million, one hundred fifty-seven thousand, four hundred forty-one".