1331051 has 2 divisors, whose sum is σ = 1331052. Its totient is φ = 1331050.

The previous prime is 1331041. The next prime is 1331059. The reversal of 1331051 is 1501331.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1331051 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1331059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665525 + 665526.

It is an arithmetic number, because the mean of its divisors is an integer number (665526).

2^1331051 is an apocalyptic number.

1331051 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331051 is an equidigital number, since it uses as much as digits as its factorization.

1331051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45, while the sum is 14.

The square root of 1331051 is about 1153.7118357718. The cubic root of 1331051 is about 110.0014049407.

Adding to 1331051 its reverse (1501331), we get a palindrome (2832382).

The spelling of 1331051 in words is "one million, three hundred thirty-one thousand, fifty-one".