1331057 has 8 divisors (see below), whose sum is σ = 1638336. Its totient is φ = 1053072.

The previous prime is 1331051. The next prime is 1331059. The reversal of 1331057 is 7501331.

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 1331057 - 2⁴ = 1331041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1331051) 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, 7223 + ... + 7404.

It is an arithmetic number, because the mean of its divisors is an integer number (204792).

2^1331057 is an apocalyptic number.

It is an amenable number.

1331057 is a deficient number, since it is larger than the sum of its proper divisors (307279).

1331057 is a wasteful number, since it uses less digits than its factorization.

1331057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14647.

The product of its (nonzero) digits is 315, while the sum is 20.

The square root of 1331057 is about 1153.7144360716. The cubic root of 1331057 is about 110.0015702255.

Adding to 1331057 its reverse (7501331), we get a palindrome (8832388).

The spelling of 1331057 in words is "one million, three hundred thirty-one thousand, fifty-seven".