13941645 has 16 divisors (see below), whose sum is σ = 22513920. Its totient is φ = 7366464.

The previous prime is 13941643. The next prime is 13941647. The reversal of 13941645 is 54614931.

It is an interprime number because it is at equal distance from previous prime (13941643) and next prime (13941647).

It is not a de Polignac number, because 13941645 - 2¹ = 13941643 is a prime.

It is a super-3 number, since 3×13941645³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13941643) 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, 2629 + ... + 5898.

It is an arithmetic number, because the mean of its divisors is an integer number (1407120).

Almost surely, 2^13941645 is an apocalyptic number.

13941645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13941645 is a deficient number, since it is larger than the sum of its proper divisors (8572275).

13941645 is a wasteful number, since it uses less digits than its factorization.

13941645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8644.

The product of its digits is 12960, while the sum is 33.

The square root of 13941645 is about 3733.8512289592. The cubic root of 13941645 is about 240.6788937584.

The spelling of 13941645 in words is "thirteen million, nine hundred forty-one thousand, six hundred forty-five".