49728131 has 2 divisors, whose sum is σ = 49728132. Its totient is φ = 49728130.

The previous prime is 49728113. The next prime is 49728157. The reversal of 49728131 is 13182794.

Together with previous prime (49728113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49728131 - 2⁶ = 49728067 is a prime.

It is a super-2 number, since 2×49728131² = 4945774025506322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 49728091 and 49728100.

It is not a weakly prime, because it can be changed into another prime (49728431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24864065 + 24864066.

It is an arithmetic number, because the mean of its divisors is an integer number (24864066).

Almost surely, 2^49728131 is an apocalyptic number.

49728131 is a deficient number, since it is larger than the sum of its proper divisors (1).

49728131 is an equidigital number, since it uses as much as digits as its factorization.

49728131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 35.

The square root of 49728131 is about 7051.8175671241. The cubic root of 49728131 is about 367.7342200135.

The spelling of 49728131 in words is "forty-nine million, seven hundred twenty-eight thousand, one hundred thirty-one".