118158503 has 2 divisors, whose sum is σ = 118158504. Its totient is φ = 118158502.

The previous prime is 118158497. The next prime is 118158529. The reversal of 118158503 is 305851811.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 118158503 - 2⁸ = 118158247 is a prime.

It is a super-2 number, since 2×118158503² = 27922863662402018, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 118158503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118158553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59079251 + 59079252.

It is an arithmetic number, because the mean of its divisors is an integer number (59079252).

Almost surely, 2^118158503 is an apocalyptic number.

118158503 is a deficient number, since it is larger than the sum of its proper divisors (1).

118158503 is an equidigital number, since it uses as much as digits as its factorization.

118158503 is an odious number, because the sum of its binary digits is odd.

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

The square root of 118158503 is about 10870.0737348005. The cubic root of 118158503 is about 490.7063296713.

The spelling of 118158503 in words is "one hundred eighteen million, one hundred fifty-eight thousand, five hundred three".