118051399 has 2 divisors, whose sum is σ = 118051400. Its totient is φ = 118051398.

The previous prime is 118051397. The next prime is 118051403. The reversal of 118051399 is 993150811.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 118051399 - 2¹ = 118051397 is a prime.

It is a super-2 number, since 2×118051399² = 27872265611714402, which contains 22 as substring.

Together with 118051397, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118051391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59025699 + 59025700.

It is an arithmetic number, because the mean of its divisors is an integer number (59025700).

Almost surely, 2^118051399 is an apocalyptic number.

118051399 is a deficient number, since it is larger than the sum of its proper divisors (1).

118051399 is an equidigital number, since it uses as much as digits as its factorization.

118051399 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 37.

The square root of 118051399 is about 10865.1460643656. The cubic root of 118051399 is about 490.5580190059.

The spelling of 118051399 in words is "one hundred eighteen million, fifty-one thousand, three hundred ninety-nine".