13742557 has 2 divisors, whose sum is σ = 13742558. Its totient is φ = 13742556.

The previous prime is 13742551. The next prime is 13742581. The reversal of 13742557 is 75524731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11249316 + 2493241 = 3354^2 + 1579^2 .

It is a cyclic number.

It is not a de Polignac number, because 13742557 - 2¹⁹ = 13218269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13742551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6871278 + 6871279.

It is an arithmetic number, because the mean of its divisors is an integer number (6871279).

Almost surely, 2^13742557 is an apocalyptic number.

It is an amenable number.

13742557 is a deficient number, since it is larger than the sum of its proper divisors (1).

13742557 is an equidigital number, since it uses as much as digits as its factorization.

13742557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29400, while the sum is 34.

The square root of 13742557 is about 3707.0954937795. The cubic root of 13742557 is about 239.5277577322.

The spelling of 13742557 in words is "thirteen million, seven hundred forty-two thousand, five hundred fifty-seven".