13374945 has 48 divisors (see below), whose sum is σ = 24719760. Its totient is φ = 6676992.

The previous prime is 13374941. The next prime is 13374947. The reversal of 13374945 is 54947331.

It can be written as a sum of positive squares in 8 ways, for example, as 1296 + 13373649 = 36^2 + 3657^2 .

It is not a de Polignac number, because 13374945 - 2² = 13374941 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13374941) 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 47 ways as a sum of consecutive naturals, for example, 48147 + ... + 48423.

It is an arithmetic number, because the mean of its divisors is an integer number (514995).

Almost surely, 2^13374945 is an apocalyptic number.

13374945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13374945 is a deficient number, since it is larger than the sum of its proper divisors (11344815).

13374945 is a wasteful number, since it uses less digits than its factorization.

13374945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354 (or 351 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 13374945 is about 3657.1771901290. The cubic root of 13374945 is about 237.3726445547.

It can be divided in two parts, 133 and 74945, that added together give a triangular number (75078 = T₃₈₇).

The spelling of 13374945 in words is "thirteen million, three hundred seventy-four thousand, nine hundred forty-five".