109897499 has 2 divisors, whose sum is σ = 109897500. Its totient is φ = 109897498.

The previous prime is 109897477. The next prime is 109897517. The reversal of 109897499 is 994798901.

It is a strong prime.

It is an emirp because it is prime and its reverse (994798901) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 109897499 - 2¹² = 109893403 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (109897399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54948749 + 54948750.

It is an arithmetic number, because the mean of its divisors is an integer number (54948750).

Almost surely, 2^109897499 is an apocalyptic number.

109897499 is a deficient number, since it is larger than the sum of its proper divisors (1).

109897499 is an equidigital number, since it uses as much as digits as its factorization.

109897499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1469664, while the sum is 56.

The square root of 109897499 is about 10483.2007993742. The cubic root of 109897499 is about 478.9931135991.

The spelling of 109897499 in words is "one hundred nine million, eight hundred ninety-seven thousand, four hundred ninety-nine".