48691131 has 4 divisors (see below), whose sum is σ = 64921512. Its totient is φ = 32460752.

The previous prime is 48691117. The next prime is 48691151. The reversal of 48691131 is 13119684.

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

It is a cyclic number.

It is not a de Polignac number, because 48691131 - 2¹⁰ = 48690107 is a prime.

It is a super-2 number, since 2×48691131² = 4741652476118322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 48691092 and 48691101.

It is not an unprimeable number, because it can be changed into a prime (48691151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8115186 + ... + 8115191.

It is an arithmetic number, because the mean of its divisors is an integer number (16230378).

Almost surely, 2^48691131 is an apocalyptic number.

48691131 is a deficient number, since it is larger than the sum of its proper divisors (16230381).

48691131 is a wasteful number, since it uses less digits than its factorization.

48691131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16230380.

The product of its digits is 5184, while the sum is 33.

The square root of 48691131 is about 6977.9030517771. The cubic root of 48691131 is about 365.1600749050.

The spelling of 48691131 in words is "forty-eight million, six hundred ninety-one thousand, one hundred thirty-one".