13458945 has 8 divisors (see below), whose sum is σ = 21534336. Its totient is φ = 7178096.

The previous prime is 13458943. The next prime is 13458971. The reversal of 13458945 is 54985431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13458945 - 2¹ = 13458943 is a prime.

It is a super-2 number, since 2×13458945² = 362286401026050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13458941) 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 7 ways as a sum of consecutive naturals, for example, 448617 + ... + 448646.

It is an arithmetic number, because the mean of its divisors is an integer number (2691792).

Almost surely, 2^13458945 is an apocalyptic number.

13458945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13458945 is a deficient number, since it is larger than the sum of its proper divisors (8075391).

13458945 is an equidigital number, since it uses as much as digits as its factorization.

13458945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897271.

The product of its digits is 86400, while the sum is 39.

The square root of 13458945 is about 3668.6434822697. The cubic root of 13458945 is about 237.8685395513.

The spelling of 13458945 in words is "thirteen million, four hundred fifty-eight thousand, nine hundred forty-five".