13457551 has 2 divisors, whose sum is σ = 13457552. Its totient is φ = 13457550.

The previous prime is 13457533. The next prime is 13457579. The reversal of 13457551 is 15575431.

It is a weak prime.

It is an emirp because it is prime and its reverse (15575431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13457551 - 2⁵ = 13457519 is a prime.

It is a super-2 number, since 2×13457551² = 362211357835202, which contains 22 as substring.

It is equal to p₈₇₇₀₆₃ and since 13457551 and 877063 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13457501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6728775 + 6728776.

It is an arithmetic number, because the mean of its divisors is an integer number (6728776).

Almost surely, 2^13457551 is an apocalyptic number.

13457551 is a deficient number, since it is larger than the sum of its proper divisors (1).

13457551 is an equidigital number, since it uses as much as digits as its factorization.

13457551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10500, while the sum is 31.

The square root of 13457551 is about 3668.4534888697. The cubic root of 13457551 is about 237.8603269167.

The spelling of 13457551 in words is "thirteen million, four hundred fifty-seven thousand, five hundred fifty-one".