14551987 has 2 divisors, whose sum is σ = 14551988. Its totient is φ = 14551986.

The previous prime is 14551981. The next prime is 14551991. The reversal of 14551987 is 78915541.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14551987 is a prime.

It is not a weakly prime, because it can be changed into another prime (14551981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7275993 + 7275994.

It is an arithmetic number, because the mean of its divisors is an integer number (7275994).

Almost surely, 2^14551987 is an apocalyptic number.

14551987 is a deficient number, since it is larger than the sum of its proper divisors (1).

14551987 is an equidigital number, since it uses as much as digits as its factorization.

14551987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 50400, while the sum is 40.

The square root of 14551987 is about 3814.7066728649. The cubic root of 14551987 is about 244.1410263754.

The spelling of 14551987 in words is "fourteen million, five hundred fifty-one thousand, nine hundred eighty-seven".