13445957 has 4 divisors (see below), whose sum is σ = 15366816. Its totient is φ = 11525100.

The previous prime is 13445933. The next prime is 13445959. The reversal of 13445957 is 75954431.

13445957 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13445957 - 2⁶ = 13445893 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13445957.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13445959) 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, 960419 + ... + 960432.

It is an arithmetic number, because the mean of its divisors is an integer number (3841704).

Almost surely, 2^13445957 is an apocalyptic number.

It is an amenable number.

13445957 is a deficient number, since it is larger than the sum of its proper divisors (1920859).

13445957 is an equidigital number, since it uses as much as digits as its factorization.

13445957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1920858.

The product of its digits is 75600, while the sum is 38.

The square root of 13445957 is about 3666.8729184415. The cubic root of 13445957 is about 237.7919998497.

The spelling of 13445957 in words is "thirteen million, four hundred forty-five thousand, nine hundred fifty-seven".