1161457 has 8 divisors (see below), whose sum is σ = 1341792. Its totient is φ = 993600.

The previous prime is 1161449. The next prime is 1161463. The reversal of 1161457 is 7541611.

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 1161457 - 2³ = 1161449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1161437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2919 + ... + 3292.

It is an arithmetic number, because the mean of its divisors is an integer number (167724).

2^1161457 is an apocalyptic number.

1161457 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1161457 is a deficient number, since it is larger than the sum of its proper divisors (180335).

1161457 is a wasteful number, since it uses less digits than its factorization.

1161457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6239.

The product of its digits is 840, while the sum is 25.

The square root of 1161457 is about 1077.7091444355. The cubic root of 1161457 is about 105.1157302947.

The spelling of 1161457 in words is "one million, one hundred sixty-one thousand, four hundred fifty-seven".