118826921 has 2 divisors, whose sum is σ = 118826922. Its totient is φ = 118826920.

The previous prime is 118826887. The next prime is 118826933. The reversal of 118826921 is 129628811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100000000 + 18826921 = 10000^2 + 4339^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-118826921 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (118826941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59413460 + 59413461.

It is an arithmetic number, because the mean of its divisors is an integer number (59413461).

Almost surely, 2^118826921 is an apocalyptic number.

It is an amenable number.

118826921 is a deficient number, since it is larger than the sum of its proper divisors (1).

118826921 is an equidigital number, since it uses as much as digits as its factorization.

118826921 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13824, while the sum is 38.

The square root of 118826921 is about 10900.7761650260. The cubic root of 118826921 is about 491.6298924648.

The spelling of 118826921 in words is "one hundred eighteen million, eight hundred twenty-six thousand, nine hundred twenty-one".