999480155 has 4 divisors (see below), whose sum is σ = 1199376192. Its totient is φ = 799584120.

The previous prime is 999480121. The next prime is 999480169. The reversal of 999480155 is 551084999.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 999480155 - 2²⁴ = 982702939 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99948011 + ... + 99948020.

It is an arithmetic number, because the mean of its divisors is an integer number (299844048).

Almost surely, 2^999480155 is an apocalyptic number.

999480155 is a deficient number, since it is larger than the sum of its proper divisors (199896037).

999480155 is a wasteful number, since it uses less digits than its factorization.

999480155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199896036.

The product of its (nonzero) digits is 583200, while the sum is 50.

The square root of 999480155 is about 31614.5560620421. The cubic root of 999480155 is about 999.8266882981.

The spelling of 999480155 in words is "nine hundred ninety-nine million, four hundred eighty thousand, one hundred fifty-five".