13551345 has 12 divisors (see below), whose sum is σ = 23489076. Its totient is φ = 7227360.

The previous prime is 13551337. The next prime is 13551359. The reversal of 13551345 is 54315531.

It can be written as a sum of positive squares in 2 ways, for example, as 9678321 + 3873024 = 3111^2 + 1968^2 .

It is not a de Polignac number, because 13551345 - 2³ = 13551337 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 150526 + ... + 150615.

It is an arithmetic number, because the mean of its divisors is an integer number (1957423).

Almost surely, 2^13551345 is an apocalyptic number.

13551345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13551345 is a deficient number, since it is larger than the sum of its proper divisors (9937731).

13551345 is a wasteful number, since it uses less digits than its factorization.

13551345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301152 (or 301149 counting only the distinct ones).

The product of its digits is 4500, while the sum is 27.

The square root of 13551345 is about 3681.2151526364. The cubic root of 13551345 is about 238.4116466635.

Adding to 13551345 its reverse (54315531), we get a palindrome (67866876).

The spelling of 13551345 in words is "thirteen million, five hundred fifty-one thousand, three hundred forty-five".