48139631 has 8 divisors (see below), whose sum is σ = 51670944. Its totient is φ = 44686080.

The previous prime is 48139613. The next prime is 48139639. The reversal of 48139631 is 13693184.

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 48139631 - 2²² = 43945327 is a prime.

It is a super-2 number, since 2×48139631² = 4634848145632322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 48139591 and 48139600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48139639) 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 7 ways as a sum of consecutive naturals, for example, 18155 + ... + 20636.

It is an arithmetic number, because the mean of its divisors is an integer number (6458868).

Almost surely, 2^48139631 is an apocalyptic number.

48139631 is a deficient number, since it is larger than the sum of its proper divisors (3531313).

48139631 is a wasteful number, since it uses less digits than its factorization.

48139631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38881.

The product of its digits is 15552, while the sum is 35.

The square root of 48139631 is about 6938.2729118996. The cubic root of 48139631 is about 363.7761751416.

The spelling of 48139631 in words is "forty-eight million, one hundred thirty-nine thousand, six hundred thirty-one".