118220775 has 12 divisors (see below), whose sum is σ = 195458472. Its totient is φ = 63051040.

The previous prime is 118220731. The next prime is 118220777. The reversal of 118220775 is 577022811.

It is not a de Polignac number, because 118220775 - 2¹⁴ = 118204391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118220777) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 788064 + ... + 788213.

It is an arithmetic number, because the mean of its divisors is an integer number (16288206).

Almost surely, 2^118220775 is an apocalyptic number.

118220775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

118220775 is a deficient number, since it is larger than the sum of its proper divisors (77237697).

118220775 is a wasteful number, since it uses less digits than its factorization.

118220775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1576290 (or 1576285 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 33.

The square root of 118220775 is about 10872.9377354972. The cubic root of 118220775 is about 490.7925186950.

The spelling of 118220775 in words is "one hundred eighteen million, two hundred twenty thousand, seven hundred seventy-five".