14387531 has 2 divisors, whose sum is σ = 14387532. Its totient is φ = 14387530.

The previous prime is 14387519. The next prime is 14387533. The reversal of 14387531 is 13578341.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 14387531 - 2¹⁸ = 14125387 is a prime.

It is a super-2 number, since 2×14387531² = 414002096551922, which contains 22 as substring.

Together with 14387533, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (14387533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7193765 + 7193766.

It is an arithmetic number, because the mean of its divisors is an integer number (7193766).

Almost surely, 2^14387531 is an apocalyptic number.

14387531 is a deficient number, since it is larger than the sum of its proper divisors (1).

14387531 is an equidigital number, since it uses as much as digits as its factorization.

14387531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 32.

The square root of 14387531 is about 3793.0899013865. The cubic root of 14387531 is about 243.2178382702.

The spelling of 14387531 in words is "fourteen million, three hundred eighty-seven thousand, five hundred thirty-one".