109435969 has 2 divisors, whose sum is σ = 109435970. Its totient is φ = 109435968.

The previous prime is 109435967. The next prime is 109435981. The reversal of 109435969 is 969534901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103795344 + 5640625 = 10188^2 + 2375^2 .

It is a cyclic number.

It is not a de Polignac number, because 109435969 - 2¹ = 109435967 is a prime.

It is a super-2 number, since 2×109435969² = 23952462621937922, which contains 22 as substring.

Together with 109435967, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (109435967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54717984 + 54717985.

It is an arithmetic number, because the mean of its divisors is an integer number (54717985).

Almost surely, 2^109435969 is an apocalyptic number.

It is an amenable number.

109435969 is a deficient number, since it is larger than the sum of its proper divisors (1).

109435969 is an equidigital number, since it uses as much as digits as its factorization.

109435969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 262440, while the sum is 46.

The square root of 109435969 is about 10461.1648013020. The cubic root of 109435969 is about 478.3216397594.

The spelling of 109435969 in words is "one hundred nine million, four hundred thirty-five thousand, nine hundred sixty-nine".