109012069 has 2 divisors, whose sum is σ = 109012070. Its totient is φ = 109012068.

The previous prime is 109012067. The next prime is 109012087. The reversal of 109012069 is 960210901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89075844 + 19936225 = 9438^2 + 4465^2 .

It is a cyclic number.

It is not a de Polignac number, because 109012069 - 2¹ = 109012067 is a prime.

It is a super-2 number, since 2×109012069² = 23767262375321522, which contains 22 as substring.

Together with 109012067, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109012067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54506034 + 54506035.

It is an arithmetic number, because the mean of its divisors is an integer number (54506035).

Almost surely, 2^109012069 is an apocalyptic number.

It is an amenable number.

109012069 is a deficient number, since it is larger than the sum of its proper divisors (1).

109012069 is an equidigital number, since it uses as much as digits as its factorization.

109012069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 109012069 is about 10440.8844931835. The cubic root of 109012069 is about 477.7032479963.

The spelling of 109012069 in words is "one hundred nine million, twelve thousand, sixty-nine".