13557122 has 8 divisors (see below), whose sum is σ = 20614476. Its totient is φ = 6685632.

The previous prime is 13557119. The next prime is 13557149. The reversal of 13557122 is 22175531.

It can be written as a sum of positive squares in 2 ways, for example, as 11895601 + 1661521 = 3449^2 + 1289^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 13557091 and 13557100.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 46283 + ... + 46574.

Almost surely, 2^13557122 is an apocalyptic number.

13557122 is a deficient number, since it is larger than the sum of its proper divisors (7057354).

13557122 is an equidigital number, since it uses as much as digits as its factorization.

13557122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92932.

The product of its digits is 2100, while the sum is 26.

The square root of 13557122 is about 3681.9997284085. Note that the first 3 decimals coincide. The cubic root of 13557122 is about 238.4455205068.

The spelling of 13557122 in words is "thirteen million, five hundred fifty-seven thousand, one hundred twenty-two".