49188137 has 2 divisors, whose sum is σ = 49188138. Its totient is φ = 49188136.

The previous prime is 49188119. The next prime is 49188193. The reversal of 49188137 is 73188194.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46566976 + 2621161 = 6824^2 + 1619^2 .

It is a cyclic number.

It is not a de Polignac number, because 49188137 - 2¹⁰ = 49187113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 49188094 and 49188103.

It is not a weakly prime, because it can be changed into another prime (49188197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24594068 + 24594069.

It is an arithmetic number, because the mean of its divisors is an integer number (24594069).

Almost surely, 2^49188137 is an apocalyptic number.

It is an amenable number.

49188137 is a deficient number, since it is larger than the sum of its proper divisors (1).

49188137 is an equidigital number, since it uses as much as digits as its factorization.

49188137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 41.

The square root of 49188137 is about 7013.4254826012. The cubic root of 49188137 is about 366.3983067599.

The spelling of 49188137 in words is "forty-nine million, one hundred eighty-eight thousand, one hundred thirty-seven".