137512289 has 2 divisors, whose sum is σ = 137512290. Its totient is φ = 137512288.

The previous prime is 137512273. The next prime is 137512339. The reversal of 137512289 is 982215731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126675025 + 10837264 = 11255^2 + 3292^2 .

It is a cyclic number.

It is not a de Polignac number, because 137512289 - 2⁴ = 137512273 is a prime.

It is not a weakly prime, because it can be changed into another prime (137512259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68756144 + 68756145.

It is an arithmetic number, because the mean of its divisors is an integer number (68756145).

Almost surely, 2^137512289 is an apocalyptic number.

It is an amenable number.

137512289 is a deficient number, since it is larger than the sum of its proper divisors (1).

137512289 is an equidigital number, since it uses as much as digits as its factorization.

137512289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 38.

The square root of 137512289 is about 11726.5633925716. The cubic root of 137512289 is about 516.1554338645.

The spelling of 137512289 in words is "one hundred thirty-seven million, five hundred twelve thousand, two hundred eighty-nine".