109519231 has 2 divisors, whose sum is σ = 109519232. Its totient is φ = 109519230.

The previous prime is 109519183. The next prime is 109519273. The reversal of 109519231 is 132915901.

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-109519231 is a prime.

It is a super-2 number, since 2×109519231² = 23988923917662722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 109519193 and 109519202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109517231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54759615 + 54759616.

It is an arithmetic number, because the mean of its divisors is an integer number (54759616).

Almost surely, 2^109519231 is an apocalyptic number.

109519231 is a deficient number, since it is larger than the sum of its proper divisors (1).

109519231 is an equidigital number, since it uses as much as digits as its factorization.

109519231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2430, while the sum is 31.

The square root of 109519231 is about 10465.1436206103. The cubic root of 109519231 is about 478.4429159137.

The spelling of 109519231 in words is "one hundred nine million, five hundred nineteen thousand, two hundred thirty-one".