14938991 has 2 divisors, whose sum is σ = 14938992. Its totient is φ = 14938990.

The previous prime is 14938981. The next prime is 14938999. The reversal of 14938991 is 19983941.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 14938991 - 2²² = 10744687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14938999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7469495 + 7469496.

It is an arithmetic number, because the mean of its divisors is an integer number (7469496).

Almost surely, 2^14938991 is an apocalyptic number.

14938991 is a deficient number, since it is larger than the sum of its proper divisors (1).

14938991 is an equidigital number, since it uses as much as digits as its factorization.

14938991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69984, while the sum is 44.

The square root of 14938991 is about 3865.0990931670. The cubic root of 14938991 is about 246.2863950261.

The spelling of 14938991 in words is "fourteen million, nine hundred thirty-eight thousand, nine hundred ninety-one".