115671869 has 2 divisors, whose sum is σ = 115671870. Its totient is φ = 115671868.

The previous prime is 115671863. The next prime is 115671929. The reversal of 115671869 is 968176511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71182969 + 44488900 = 8437^2 + 6670^2 .

It is a cyclic number.

It is not a de Polignac number, because 115671869 - 2⁸ = 115671613 is a prime.

It is a super-2 number, since 2×115671869² = 26759962555906322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115671863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57835934 + 57835935.

It is an arithmetic number, because the mean of its divisors is an integer number (57835935).

Almost surely, 2^115671869 is an apocalyptic number.

It is an amenable number.

115671869 is a deficient number, since it is larger than the sum of its proper divisors (1).

115671869 is an equidigital number, since it uses as much as digits as its factorization.

115671869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 44.

The square root of 115671869 is about 10755.0857272269. The cubic root of 115671869 is about 487.2396070706.

The spelling of 115671869 in words is "one hundred fifteen million, six hundred seventy-one thousand, eight hundred sixty-nine".