49542137 has 2 divisors, whose sum is σ = 49542138. Its totient is φ = 49542136.

The previous prime is 49542133. The next prime is 49542169. The reversal of 49542137 is 73124594.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33131536 + 16410601 = 5756^2 + 4051^2 .

It is a cyclic number.

It is not a de Polignac number, because 49542137 - 2² = 49542133 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 49542097 and 49542106.

It is not a weakly prime, because it can be changed into another prime (49542133) 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 as a sum of consecutive naturals, namely, 24771068 + 24771069.

It is an arithmetic number, because the mean of its divisors is an integer number (24771069).

Almost surely, 2^49542137 is an apocalyptic number.

It is an amenable number.

49542137 is a deficient number, since it is larger than the sum of its proper divisors (1).

49542137 is an equidigital number, since it uses as much as digits as its factorization.

49542137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 35.

The square root of 49542137 is about 7038.6175489225. The cubic root of 49542137 is about 367.2751786407.

The spelling of 49542137 in words is "forty-nine million, five hundred forty-two thousand, one hundred thirty-seven".