109452643 has 2 divisors, whose sum is σ = 109452644. Its totient is φ = 109452642.

The previous prime is 109452619. The next prime is 109452649. The reversal of 109452643 is 346254901.

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-109452643 is a prime.

It is equal to p_6273691 and since 109452643 and 6273691 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 109452599 and 109452608.

It is not a weakly prime, because it can be changed into another prime (109452649) 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, 54726321 + 54726322.

It is an arithmetic number, because the mean of its divisors is an integer number (54726322).

Almost surely, 2^109452643 is an apocalyptic number.

109452643 is a deficient number, since it is larger than the sum of its proper divisors (1).

109452643 is an equidigital number, since it uses as much as digits as its factorization.

109452643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 109452643 is about 10461.9617185306. The cubic root of 109452643 is about 478.3459313766.

The spelling of 109452643 in words is "one hundred nine million, four hundred fifty-two thousand, six hundred forty-three".