14091557 has 2 divisors, whose sum is σ = 14091558. Its totient is φ = 14091556.

The previous prime is 14091551. The next prime is 14091569. The reversal of 14091557 is 75519041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13535041 + 556516 = 3679^2 + 746^2 .

It is a cyclic number.

It is not a de Polignac number, because 14091557 - 2¹² = 14087461 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14091551) 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 as a sum of consecutive naturals, namely, 7045778 + 7045779.

It is an arithmetic number, because the mean of its divisors is an integer number (7045779).

Almost surely, 2^14091557 is an apocalyptic number.

It is an amenable number.

14091557 is a deficient number, since it is larger than the sum of its proper divisors (1).

14091557 is an equidigital number, since it uses as much as digits as its factorization.

14091557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6300, while the sum is 32.

The square root of 14091557 is about 3753.8722674060. The cubic root of 14091557 is about 241.5384790380.

The spelling of 14091557 in words is "fourteen million, ninety-one thousand, five hundred fifty-seven".