118506819 has 32 divisors (see below), whose sum is σ = 173134080. Its totient is φ = 71839872.

The previous prime is 118506811. The next prime is 118506827. The reversal of 118506819 is 918605811.

It is an interprime number because it is at equal distance from previous prime (118506811) and next prime (118506827).

It is not a de Polignac number, because 118506819 - 2³ = 118506811 is a prime.

It is a super-2 number, since 2×118506819² = 28087732298997522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (118506811) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 174709 + ... + 175385.

It is an arithmetic number, because the mean of its divisors is an integer number (5410440).

Almost surely, 2^118506819 is an apocalyptic number.

118506819 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

118506819 is a deficient number, since it is larger than the sum of its proper divisors (54627261).

118506819 is a wasteful number, since it uses less digits than its factorization.

118506819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819.

The product of its (nonzero) digits is 17280, while the sum is 39.

The square root of 118506819 is about 10886.0837310761. The cubic root of 118506819 is about 491.1880362638.

The spelling of 118506819 in words is "one hundred eighteen million, five hundred six thousand, eight hundred nineteen".