13703531 has 2 divisors, whose sum is σ = 13703532. Its totient is φ = 13703530.

The previous prime is 13703509. The next prime is 13703533. The reversal of 13703531 is 13530731.

It is a happy number.

13703531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13703531 is a prime.

It is a super-2 number, since 2×13703531² = 375573523735922, which contains 22 as substring.

Together with 13703533, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 13703497 and 13703506.

It is not a weakly prime, because it can be changed into another prime (13703533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6851765 + 6851766.

It is an arithmetic number, because the mean of its divisors is an integer number (6851766).

Almost surely, 2^13703531 is an apocalyptic number.

13703531 is a deficient number, since it is larger than the sum of its proper divisors (1).

13703531 is an equidigital number, since it uses as much as digits as its factorization.

13703531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 945, while the sum is 23.

The square root of 13703531 is about 3701.8280619175. The cubic root of 13703531 is about 239.3008064482.

The spelling of 13703531 in words is "thirteen million, seven hundred three thousand, five hundred thirty-one".