118815503 has 2 divisors, whose sum is σ = 118815504. Its totient is φ = 118815502.

The previous prime is 118815479. The next prime is 118815517. The reversal of 118815503 is 305518811.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 118815503 - 2²⁰ = 117766927 is a prime.

It is a super-3 number, since 3×118815503³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 118815503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118815553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59407751 + 59407752.

It is an arithmetic number, because the mean of its divisors is an integer number (59407752).

Almost surely, 2^118815503 is an apocalyptic number.

118815503 is a deficient number, since it is larger than the sum of its proper divisors (1).

118815503 is an equidigital number, since it uses as much as digits as its factorization.

118815503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4800, while the sum is 32.

The square root of 118815503 is about 10900.2524282697. The cubic root of 118815503 is about 491.6141451637.

The spelling of 118815503 in words is "one hundred eighteen million, eight hundred fifteen thousand, five hundred three".