13958545 has 4 divisors (see below), whose sum is σ = 16750260. Its totient is φ = 11166832.

The previous prime is 13958543. The next prime is 13958561. The reversal of 13958545 is 54585931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54585931 = 577 ⋅94603.

It can be written as a sum of positive squares in 2 ways, for example, as 10804369 + 3154176 = 3287^2 + 1776^2 .

It is a cyclic number.

It is not a de Polignac number, because 13958545 - 2¹ = 13958543 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 13958498 and 13958507.

It is not an unprimeable number, because it can be changed into a prime (13958543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1395850 + ... + 1395859.

It is an arithmetic number, because the mean of its divisors is an integer number (4187565).

Almost surely, 2^13958545 is an apocalyptic number.

It is an amenable number.

13958545 is a deficient number, since it is larger than the sum of its proper divisors (2791715).

13958545 is an equidigital number, since it uses as much as digits as its factorization.

13958545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2791714.

The product of its digits is 108000, while the sum is 40.

The square root of 13958545 is about 3736.1136224692. The cubic root of 13958545 is about 240.7761044507.

The spelling of 13958545 in words is "thirteen million, nine hundred fifty-eight thousand, five hundred forty-five".