111099953 has 2 divisors, whose sum is σ = 111099954. Its totient is φ = 111099952.

The previous prime is 111099949. The next prime is 111099979. The reversal of 111099953 is 359990111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103388224 + 7711729 = 10168^2 + 2777^2 .

It is a cyclic number.

It is not a de Polignac number, because 111099953 - 2² = 111099949 is a prime.

It is not a weakly prime, because it can be changed into another prime (111099983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55549976 + 55549977.

It is an arithmetic number, because the mean of its divisors is an integer number (55549977).

Almost surely, 2^111099953 is an apocalyptic number.

It is an amenable number.

111099953 is a deficient number, since it is larger than the sum of its proper divisors (1).

111099953 is an equidigital number, since it uses as much as digits as its factorization.

111099953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10935, while the sum is 38.

The square root of 111099953 is about 10540.3962449236. The cubic root of 111099953 is about 480.7337634495.

The spelling of 111099953 in words is "one hundred eleven million, ninety-nine thousand, nine hundred fifty-three".