137875289 has 2 divisors, whose sum is σ = 137875290. Its totient is φ = 137875288.

The previous prime is 137875279. The next prime is 137875301. The reversal of 137875289 is 982578731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102353689 + 35521600 = 10117^2 + 5960^2 .

It is a cyclic number.

It is not a de Polignac number, because 137875289 - 2²⁰ = 136826713 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (137875249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68937644 + 68937645.

It is an arithmetic number, because the mean of its divisors is an integer number (68937645).

Almost surely, 2^137875289 is an apocalyptic number.

It is an amenable number.

137875289 is a deficient number, since it is larger than the sum of its proper divisors (1).

137875289 is an equidigital number, since it uses as much as digits as its factorization.

137875289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 846720, while the sum is 50.

The square root of 137875289 is about 11742.0308720425. The cubic root of 137875289 is about 516.6092110002.

It can be divided in two parts, 1378 and 75289, that added together give a palindrome (76667).

The spelling of 137875289 in words is "one hundred thirty-seven million, eight hundred seventy-five thousand, two hundred eighty-nine".