1161057 has 8 divisors (see below), whose sum is σ = 1562976. Its totient is φ = 766592.

The previous prime is 1161047. The next prime is 1161059. The reversal of 1161057 is 7501611.

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 1161057 - 2¹⁵ = 1128289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1161059) 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, 1488 + ... + 2129.

It is an arithmetic number, because the mean of its divisors is an integer number (195372).

2^1161057 is an apocalyptic number.

It is an amenable number.

1161057 is a deficient number, since it is larger than the sum of its proper divisors (401919).

1161057 is a wasteful number, since it uses less digits than its factorization.

1161057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3727.

The product of its (nonzero) digits is 210, while the sum is 21.

The square root of 1161057 is about 1077.5235496266. The cubic root of 1161057 is about 105.1036617980.

Adding to 1161057 its reverse (7501611), we get a palindrome (8662668).

The spelling of 1161057 in words is "one million, one hundred sixty-one thousand, fifty-seven".