47169137 has 2 divisors, whose sum is σ = 47169138. Its totient is φ = 47169136.

The previous prime is 47169119. The next prime is 47169163. The reversal of 47169137 is 73196174.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30514576 + 16654561 = 5524^2 + 4081^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47169137 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47169137.

It is not a weakly prime, because it can be changed into another prime (47169107) 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 as a sum of consecutive naturals, namely, 23584568 + 23584569.

It is an arithmetic number, because the mean of its divisors is an integer number (23584569).

Almost surely, 2^47169137 is an apocalyptic number.

It is an amenable number.

47169137 is a deficient number, since it is larger than the sum of its proper divisors (1).

47169137 is an equidigital number, since it uses as much as digits as its factorization.

47169137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31752, while the sum is 38.

The square root of 47169137 is about 6867.9791059671. The cubic root of 47169137 is about 361.3149876497.

The spelling of 47169137 in words is "forty-seven million, one hundred sixty-nine thousand, one hundred thirty-seven".