118557403 has 2 divisors, whose sum is σ = 118557404. Its totient is φ = 118557402.

The previous prime is 118557401. The next prime is 118557431. The reversal of 118557403 is 304755811.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (304755811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 118557403 - 2¹ = 118557401 is a prime.

It is a super-2 number, since 2×118557403² = 28111715612208818, which contains 22 as substring.

Together with 118557401, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (118557401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59278701 + 59278702.

It is an arithmetic number, because the mean of its divisors is an integer number (59278702).

Almost surely, 2^118557403 is an apocalyptic number.

118557403 is a deficient number, since it is larger than the sum of its proper divisors (1).

118557403 is an equidigital number, since it uses as much as digits as its factorization.

118557403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 118557403 is about 10888.4068164264. The cubic root of 118557403 is about 491.2579133154.

The spelling of 118557403 in words is "one hundred eighteen million, five hundred fifty-seven thousand, four hundred three".