14981789 has 2 divisors, whose sum is σ = 14981790. Its totient is φ = 14981788.

The previous prime is 14981741. The next prime is 14981821. The reversal of 14981789 is 98718941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11276164 + 3705625 = 3358^2 + 1925^2 .

It is a cyclic number.

It is not a de Polignac number, because 14981789 - 2¹² = 14977693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14981089) 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, 7490894 + 7490895.

It is an arithmetic number, because the mean of its divisors is an integer number (7490895).

Almost surely, 2^14981789 is an apocalyptic number.

It is an amenable number.

14981789 is a deficient number, since it is larger than the sum of its proper divisors (1).

14981789 is an equidigital number, since it uses as much as digits as its factorization.

14981789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 47.

The square root of 14981789 is about 3870.6316022065. The cubic root of 14981789 is about 246.5213621535.

The spelling of 14981789 in words is "fourteen million, nine hundred eighty-one thousand, seven hundred eighty-nine".