49819131 has 28 divisors (see below), whose sum is σ = 76754832. Its totient is φ = 32297616.

The previous prime is 49819109. The next prime is 49819151. The reversal of 49819131 is 13191894.

It is not a de Polignac number, because 49819131 - 2¹⁰ = 49818107 is a prime.

It is a super-2 number, since 2×49819131² = 4963891627190322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (49819151) 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 27 ways as a sum of consecutive naturals, for example, 26050 + ... + 27896.

It is an arithmetic number, because the mean of its divisors is an integer number (2741244).

Almost surely, 2^49819131 is an apocalyptic number.

49819131 is a deficient number, since it is larger than the sum of its proper divisors (26935701).

49819131 is an equidigital number, since it uses as much as digits as its factorization.

49819131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1902 (or 1887 counting only the distinct ones).

The product of its digits is 7776, while the sum is 36.

The square root of 49819131 is about 7058.2668552556. The cubic root of 49819131 is about 367.9583950877.

The spelling of 49819131 in words is "forty-nine million, eight hundred nineteen thousand, one hundred thirty-one".