118161503 has 2 divisors, whose sum is σ = 118161504. Its totient is φ = 118161502.

The previous prime is 118161499. The next prime is 118161521. The reversal of 118161503 is 305161811.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 118161503 - 2² = 118161499 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (118161583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59080751 + 59080752.

It is an arithmetic number, because the mean of its divisors is an integer number (59080752).

Almost surely, 2^118161503 is an apocalyptic number.

118161503 is a deficient number, since it is larger than the sum of its proper divisors (1).

118161503 is an equidigital number, since it uses as much as digits as its factorization.

118161503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 118161503 is about 10870.2117274688. The cubic root of 118161503 is about 490.7104825860.

The spelling of 118161503 in words is "one hundred eighteen million, one hundred sixty-one thousand, five hundred three".