117820546 has 4 divisors (see below), whose sum is σ = 176730822. Its totient is φ = 58910272.

The previous prime is 117820519. The next prime is 117820561. The reversal of 117820546 is 645028711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 645028711 = 14071 ⋅45841.

It can be written as a sum of positive squares in only one way, i.e., 61795321 + 56025225 = 7861^2 + 7485^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 29455135 + ... + 29455138.

Almost surely, 2^117820546 is an apocalyptic number.

117820546 is a deficient number, since it is larger than the sum of its proper divisors (58910276).

117820546 is an equidigital number, since it uses as much as digits as its factorization.

117820546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58910275.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 117820546 is about 10854.5173084758. The cubic root of 117820546 is about 490.2380434394.

The spelling of 117820546 in words is "one hundred seventeen million, eight hundred twenty thousand, five hundred forty-six".