48121945 has 8 divisors (see below), whose sum is σ = 59089536. Its totient is φ = 37602096.

The previous prime is 48121921. The next prime is 48121949. The reversal of 48121945 is 54912184.

It is a happy number.

48121945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 48121945 - 2¹³ = 48113753 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 48121945.

It is not an unprimeable number, because it can be changed into a prime (48121949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111697 + ... + 112126.

It is an arithmetic number, because the mean of its divisors is an integer number (7386192).

Almost surely, 2^48121945 is an apocalyptic number.

It is an amenable number.

48121945 is a deficient number, since it is larger than the sum of its proper divisors (10967591).

48121945 is a wasteful number, since it uses less digits than its factorization.

48121945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223871.

The product of its digits is 11520, while the sum is 34.

The square root of 48121945 is about 6936.9982701454. The cubic root of 48121945 is about 363.7316204898.

The spelling of 48121945 in words is "forty-eight million, one hundred twenty-one thousand, nine hundred forty-five".