48138133 has 4 divisors (see below), whose sum is σ = 49691008. Its totient is φ = 46585260.

The previous prime is 48138127. The next prime is 48138143. The reversal of 48138133 is 33183184.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-48138133 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 1552843 = 48138133 / (4 + 8 + 1 + 3 + 8 + 1 + 3 + 3).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 48138095 and 48138104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48138143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 776391 + ... + 776452.

It is an arithmetic number, because the mean of its divisors is an integer number (12422752).

Almost surely, 2^48138133 is an apocalyptic number.

It is an amenable number.

48138133 is a deficient number, since it is larger than the sum of its proper divisors (1552875).

48138133 is a wasteful number, since it uses less digits than its factorization.

48138133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1552874.

The product of its digits is 6912, while the sum is 31.

The square root of 48138133 is about 6938.1649591228. The cubic root of 48138133 is about 363.7724017962.

The spelling of 48138133 in words is "forty-eight million, one hundred thirty-eight thousand, one hundred thirty-three".