137744197 has 2 divisors, whose sum is σ = 137744198. Its totient is φ = 137744196.

The previous prime is 137744147. The next prime is 137744207. The reversal of 137744197 is 791447731.

137744197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84658401 + 53085796 = 9201^2 + 7286^2 .

It is a cyclic number.

It is not a de Polignac number, because 137744197 - 2¹¹ = 137742149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137744137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68872098 + 68872099.

It is an arithmetic number, because the mean of its divisors is an integer number (68872099).

Almost surely, 2^137744197 is an apocalyptic number.

It is an amenable number.

137744197 is a deficient number, since it is larger than the sum of its proper divisors (1).

137744197 is an equidigital number, since it uses as much as digits as its factorization.

137744197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 148176, while the sum is 43.

The square root of 137744197 is about 11736.4473755903. The cubic root of 137744197 is about 516.4454281828.

It can be divided in two parts, 13774 and 4197, that added together give a palindrome (17971).

The spelling of 137744197 in words is "one hundred thirty-seven million, seven hundred forty-four thousand, one hundred ninety-seven".