137273789 has 2 divisors, whose sum is σ = 137273790. Its totient is φ = 137273788.

The previous prime is 137273777. The next prime is 137273813. The reversal of 137273789 is 987372731.

137273789 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95218564 + 42055225 = 9758^2 + 6485^2 .

It is a cyclic number.

It is not a de Polignac number, because 137273789 - 2⁸ = 137273533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137273749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68636894 + 68636895.

It is an arithmetic number, because the mean of its divisors is an integer number (68636895).

Almost surely, 2^137273789 is an apocalyptic number.

It is an amenable number.

137273789 is a deficient number, since it is larger than the sum of its proper divisors (1).

137273789 is an equidigital number, since it uses as much as digits as its factorization.

137273789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 444528, while the sum is 47.

The square root of 137273789 is about 11716.3897596487. The cubic root of 137273789 is about 515.8568561637.

The spelling of 137273789 in words is "one hundred thirty-seven million, two hundred seventy-three thousand, seven hundred eighty-nine".