118245511 has 4 divisors (see below), whose sum is σ = 120184024. Its totient is φ = 116307000.

The previous prime is 118245487. The next prime is 118245521. The reversal of 118245511 is 115542811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 115542811 = 97 ⋅1191163.

It is a cyclic number.

It is not a de Polignac number, because 118245511 - 2¹⁷ = 118114439 is a prime.

It is a super-2 number, since 2×118245511² = 27964001743302242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 118245511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118245521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 969165 + ... + 969286.

It is an arithmetic number, because the mean of its divisors is an integer number (30046006).

Almost surely, 2^118245511 is an apocalyptic number.

118245511 is a deficient number, since it is larger than the sum of its proper divisors (1938513).

118245511 is an equidigital number, since it uses as much as digits as its factorization.

118245511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1938512.

The product of its digits is 1600, while the sum is 28.

The square root of 118245511 is about 10874.0751790670. The cubic root of 118245511 is about 490.8267467374.

The spelling of 118245511 in words is "one hundred eighteen million, two hundred forty-five thousand, five hundred eleven".