13455945 has 24 divisors (see below), whose sum is σ = 23677056. Its totient is φ = 7067808.

The previous prime is 13455931. The next prime is 13455979. The reversal of 13455945 is 54955431.

It is not a de Polignac number, because 13455945 - 2⁶ = 13455881 is a prime.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 784 + ... + 5246.

It is an arithmetic number, because the mean of its divisors is an integer number (986544).

Almost surely, 2^13455945 is an apocalyptic number.

13455945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13455945 is a deficient number, since it is larger than the sum of its proper divisors (10221111).

13455945 is a wasteful number, since it uses less digits than its factorization.

13455945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4541 (or 4538 counting only the distinct ones).

The product of its digits is 54000, while the sum is 36.

The square root of 13455945 is about 3668.2345890087. The cubic root of 13455945 is about 237.8508645987.

It can be divided in two parts, 13455 and 945, that added together give a square (14400 = 120²).

The spelling of 13455945 in words is "thirteen million, four hundred fifty-five thousand, nine hundred forty-five".