108774431 has 2 divisors, whose sum is σ = 108774432. Its totient is φ = 108774430.

The previous prime is 108774401. The next prime is 108774451. The reversal of 108774431 is 134477801.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 108774431 - 2¹⁰ = 108773407 is a prime.

It is a super-2 number, since 2×108774431² = 23663753678747522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 108774391 and 108774400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108774401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54387215 + 54387216.

It is an arithmetic number, because the mean of its divisors is an integer number (54387216).

Almost surely, 2^108774431 is an apocalyptic number.

108774431 is a deficient number, since it is larger than the sum of its proper divisors (1).

108774431 is an equidigital number, since it uses as much as digits as its factorization.

108774431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 108774431 is about 10429.4981183181. The cubic root of 108774431 is about 477.3558765717.

The spelling of 108774431 in words is "one hundred eight million, seven hundred seventy-four thousand, four hundred thirty-one".