1311057 has 48 divisors (see below), whose sum is σ = 2358720. Its totient is φ = 691200.

The previous prime is 1311053. The next prime is 1311067. The reversal of 1311057 is 7501131.

It is a happy number.

It is not a de Polignac number, because 1311057 - 2² = 1311053 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1311053) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 31957 + ... + 31997.

It is an arithmetic number, because the mean of its divisors is an integer number (49140).

2^1311057 is an apocalyptic number.

1311057 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1311057 is a deficient number, since it is larger than the sum of its proper divisors (1047663).

1311057 is a wasteful number, since it uses less digits than its factorization.

1311057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94 (or 91 counting only the distinct ones).

The product of its (nonzero) digits is 105, while the sum is 18.

The square root of 1311057 is about 1145.0139737139. The cubic root of 1311057 is about 109.4478390462.

Adding to 1311057 its reverse (7501131), we get a palindrome (8812188).

The spelling of 1311057 in words is "one million, three hundred eleven thousand, fifty-seven".