118792021 has 4 divisors (see below), whose sum is σ = 119302092. Its totient is φ = 118281952.

The previous prime is 118792019. The next prime is 118792057. The reversal of 118792021 is 120297811.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 120297811 = 353 ⋅340787.

It can be written as a sum of positive squares in 2 ways, for example, as 10923025 + 107868996 = 3305^2 + 10386^2 .

It is a cyclic number.

It is not a de Polignac number, because 118792021 - 2¹ = 118792019 is a prime.

It is a super-2 number, since 2×118792021² = 28223088506528882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118792061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 254686 + ... + 255151.

It is an arithmetic number, because the mean of its divisors is an integer number (29825523).

Almost surely, 2^118792021 is an apocalyptic number.

It is an amenable number.

118792021 is a deficient number, since it is larger than the sum of its proper divisors (510071).

118792021 is an equidigital number, since it uses as much as digits as its factorization.

118792021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510070.

The product of its (nonzero) digits is 2016, while the sum is 31.

The square root of 118792021 is about 10899.1752440265. The cubic root of 118792021 is about 491.5817564500.

The spelling of 118792021 in words is "one hundred eighteen million, seven hundred ninety-two thousand, twenty-one".