13757145 has 16 divisors (see below), whose sum is σ = 22057920. Its totient is φ = 7321664.

The previous prime is 13757143. The next prime is 13757171. The reversal of 13757145 is 54175731.

It is a cyclic number.

It is not a de Polignac number, because 13757145 - 2¹ = 13757143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13757141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11851 + ... + 12959.

It is an arithmetic number, because the mean of its divisors is an integer number (1378620).

Almost surely, 2^13757145 is an apocalyptic number.

13757145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13757145 is a deficient number, since it is larger than the sum of its proper divisors (8300775).

13757145 is a wasteful number, since it uses less digits than its factorization.

13757145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1944.

The product of its digits is 14700, while the sum is 33.

The square root of 13757145 is about 3709.0625500253. The cubic root of 13757145 is about 239.6124822674.

The spelling of 13757145 in words is "thirteen million, seven hundred fifty-seven thousand, one hundred forty-five".