13557274 has 4 divisors (see below), whose sum is σ = 20335914. Its totient is φ = 6778636.

The previous prime is 13557251. The next prime is 13557283. The reversal of 13557274 is 47275531.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11854249 + 1703025 = 3443^2 + 1305^2 .

It is a super-2 number, since 2×13557274² = 367599356622152, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3389317 + ... + 3389320.

Almost surely, 2^13557274 is an apocalyptic number.

13557274 is a deficient number, since it is larger than the sum of its proper divisors (6778640).

13557274 is an equidigital number, since it uses as much as digits as its factorization.

13557274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6778639.

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

The square root of 13557274 is about 3682.0203693081. The cubic root of 13557274 is about 238.4464116395.

It can be divided in two parts, 13557 and 274, that added together give a palindrome (13831).

The spelling of 13557274 in words is "thirteen million, five hundred fifty-seven thousand, two hundred seventy-four".