13661350 has 24 divisors (see below), whose sum is σ = 25556400. Its totient is φ = 5433120.

The previous prime is 13661341. The next prime is 13661357. The reversal of 13661350 is 5316631.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13661357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9264 + ... + 10636.

It is an arithmetic number, because the mean of its divisors is an integer number (1064850).

Almost surely, 2^13661350 is an apocalyptic number.

13661350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13661350 is a deficient number, since it is larger than the sum of its proper divisors (11895050).

13661350 is a wasteful number, since it uses less digits than its factorization.

13661350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1584 (or 1579 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 13661350 is about 3696.1263506542. The cubic root of 13661350 is about 239.0550225494.

Adding to 13661350 its reverse (5316631), we get a palindrome (18977981).

The spelling of 13661350 in words is "thirteen million, six hundred sixty-one thousand, three hundred fifty".