13658145 has 16 divisors (see below), whose sum is σ = 21907392. Its totient is φ = 7266240.

The previous prime is 13658111. The next prime is 13658171. The reversal of 13658145 is 54185631.

Added to its reverse (54185631) it gives a triangular number (67843776 = T₁₁₆₄₈).

It is not a de Polignac number, because 13658145 - 2¹² = 13654049 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6975 + ... + 8715.

It is an arithmetic number, because the mean of its divisors is an integer number (1369212).

Almost surely, 2^13658145 is an apocalyptic number.

13658145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13658145 is a deficient number, since it is larger than the sum of its proper divisors (8249247).

13658145 is a wasteful number, since it uses less digits than its factorization.

13658145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2272.

The product of its digits is 14400, while the sum is 33.

The square root of 13658145 is about 3695.6927632042. The cubic root of 13658145 is about 239.0363267087.

Adding to 13658145 its reverse (54185631), we get a triangular number (67843776 = T₁₁₆₄₈).

The spelling of 13658145 in words is "thirteen million, six hundred fifty-eight thousand, one hundred forty-five".