111629899 has 2 divisors, whose sum is σ = 111629900. Its totient is φ = 111629898.

The previous prime is 111629897. The next prime is 111629911. The reversal of 111629899 is 998926111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111629899 - 2¹ = 111629897 is a prime.

It is a super-2 number, since 2×111629899² = 24922468701500402, which contains 22 as substring.

Together with 111629897, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (111629891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55814949 + 55814950.

It is an arithmetic number, because the mean of its divisors is an integer number (55814950).

Almost surely, 2^111629899 is an apocalyptic number.

111629899 is a deficient number, since it is larger than the sum of its proper divisors (1).

111629899 is an equidigital number, since it uses as much as digits as its factorization.

111629899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69984, while the sum is 46.

The square root of 111629899 is about 10565.5051464660. The cubic root of 111629899 is about 481.4969168853.

The spelling of 111629899 in words is "one hundred eleven million, six hundred twenty-nine thousand, eight hundred ninety-nine".