48709145 has 4 divisors (see below), whose sum is σ = 58450980. Its totient is φ = 38967312.

The previous prime is 48709123. The next prime is 48709151. The reversal of 48709145 is 54190784.

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

It can be written as a sum of positive squares in 2 ways, for example, as 17884441 + 30824704 = 4229^2 + 5552^2 .

It is a cyclic number.

It is not a de Polignac number, because 48709145 - 2⁸ = 48708889 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 48709099 and 48709108.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4870910 + ... + 4870919.

It is an arithmetic number, because the mean of its divisors is an integer number (14612745).

Almost surely, 2^48709145 is an apocalyptic number.

It is an amenable number.

48709145 is a deficient number, since it is larger than the sum of its proper divisors (9741835).

48709145 is an equidigital number, since it uses as much as digits as its factorization.

48709145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9741834.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 48709145 is about 6979.1937213406. The cubic root of 48709145 is about 365.2051014660.

The spelling of 48709145 in words is "forty-eight million, seven hundred nine thousand, one hundred forty-five".