48161999 has 4 divisors (see below), whose sum is σ = 48221064. Its totient is φ = 48102936.

The previous prime is 48161959. The next prime is 48162041. The reversal of 48161999 is 99916184.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-48161999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48161959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28292 + ... + 29945.

It is an arithmetic number, because the mean of its divisors is an integer number (12055266).

Almost surely, 2^48161999 is an apocalyptic number.

48161999 is a deficient number, since it is larger than the sum of its proper divisors (59065).

48161999 is an equidigital number, since it uses as much as digits as its factorization.

48161999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59064.

The product of its digits is 139968, while the sum is 47.

The square root of 48161999 is about 6939.8846532201. The cubic root of 48161999 is about 363.8325090835.

The spelling of 48161999 in words is "forty-eight million, one hundred sixty-one thousand, nine hundred ninety-nine".