109814381 has 2 divisors, whose sum is σ = 109814382. Its totient is φ = 109814380.

The previous prime is 109814347. The next prime is 109814437. The reversal of 109814381 is 183418901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85470025 + 24344356 = 9245^2 + 4934^2 .

It is a cyclic number.

It is not a de Polignac number, because 109814381 - 2¹⁸ = 109552237 is a prime.

It is a super-2 number, since 2×109814381² = 24118396548826322, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109814321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54907190 + 54907191.

It is an arithmetic number, because the mean of its divisors is an integer number (54907191).

Almost surely, 2^109814381 is an apocalyptic number.

It is an amenable number.

109814381 is a deficient number, since it is larger than the sum of its proper divisors (1).

109814381 is an equidigital number, since it uses as much as digits as its factorization.

109814381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 35.

The square root of 109814381 is about 10479.2357068634. The cubic root of 109814381 is about 478.8723253150.

The spelling of 109814381 in words is "one hundred nine million, eight hundred fourteen thousand, three hundred eighty-one".