13485557 has 2 divisors, whose sum is σ = 13485558. Its totient is φ = 13485556.

The previous prime is 13485553. The next prime is 13485587. The reversal of 13485557 is 75558431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9449476 + 4036081 = 3074^2 + 2009^2 .

It is a cyclic number.

It is not a de Polignac number, because 13485557 - 2² = 13485553 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13485557.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13485553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6742778 + 6742779.

It is an arithmetic number, because the mean of its divisors is an integer number (6742779).

Almost surely, 2^13485557 is an apocalyptic number.

It is an amenable number.

13485557 is a deficient number, since it is larger than the sum of its proper divisors (1).

13485557 is an equidigital number, since it uses as much as digits as its factorization.

13485557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84000, while the sum is 38.

The square root of 13485557 is about 3672.2686448570. The cubic root of 13485557 is about 238.0252132976.

The spelling of 13485557 in words is "thirteen million, four hundred eighty-five thousand, five hundred fifty-seven".