137121163 has 2 divisors, whose sum is σ = 137121164. Its totient is φ = 137121162.

The previous prime is 137121161. The next prime is 137121241. The reversal of 137121163 is 361121731.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 137121163 - 2¹ = 137121161 is a prime.

Together with 137121161, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (137121161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68560581 + 68560582.

It is an arithmetic number, because the mean of its divisors is an integer number (68560582).

Almost surely, 2^137121163 is an apocalyptic number.

137121163 is a deficient number, since it is larger than the sum of its proper divisors (1).

137121163 is an equidigital number, since it uses as much as digits as its factorization.

137121163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 756, while the sum is 25.

The square root of 137121163 is about 11709.8745936923. The cubic root of 137121163 is about 515.6656024495.

Adding to 137121163 its reverse (361121731), we get a palindrome (498242894).

The spelling of 137121163 in words is "one hundred thirty-seven million, one hundred twenty-one thousand, one hundred sixty-three".