137381449169 has 2 divisors, whose sum is σ = 137381449170. Its totient is φ = 137381449168.

The previous prime is 137381449157. The next prime is 137381449213. The reversal of 137381449169 is 961944183731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 136705449169 + 676000000 = 369737^2 + 26000^2 .

It is a cyclic number.

It is not a de Polignac number, because 137381449169 - 2³⁶ = 68661972433 is a prime.

It is a super-2 number, since 2×137381449169² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (137381449369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68690724584 + 68690724585.

It is an arithmetic number, because the mean of its divisors is an integer number (68690724585).

Almost surely, 2^137381449169 is an apocalyptic number.

It is an amenable number.

137381449169 is a deficient number, since it is larger than the sum of its proper divisors (1).

137381449169 is an equidigital number, since it uses as much as digits as its factorization.

137381449169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3919104, while the sum is 56.

The spelling of 137381449169 in words is "one hundred thirty-seven billion, three hundred eighty-one million, four hundred forty-nine thousand, one hundred sixty-nine".