137442289 has 2 divisors, whose sum is σ = 137442290. Its totient is φ = 137442288.

The previous prime is 137442271. The next prime is 137442301. The reversal of 137442289 is 982244731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98903025 + 38539264 = 9945^2 + 6208^2 .

It is a cyclic number.

It is not a de Polignac number, because 137442289 - 2¹³ = 137434097 is a prime.

It is not a weakly prime, because it can be changed into another prime (137442689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68721144 + 68721145.

It is an arithmetic number, because the mean of its divisors is an integer number (68721145).

Almost surely, 2^137442289 is an apocalyptic number.

It is an amenable number.

137442289 is a deficient number, since it is larger than the sum of its proper divisors (1).

137442289 is an equidigital number, since it uses as much as digits as its factorization.

137442289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96768, while the sum is 40.

The square root of 137442289 is about 11723.5783359860. The cubic root of 137442289 is about 516.0678368138.

It can be divided in two parts, 137442 and 289, that added together give a palindrome (137731).

The spelling of 137442289 in words is "one hundred thirty-seven million, four hundred forty-two thousand, two hundred eighty-nine".