743687137 has 2 divisors, whose sum is σ = 743687138. Its totient is φ = 743687136.

The previous prime is 743687111. The next prime is 743687141. The reversal of 743687137 is 731786347.

743687137 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., 496442961 + 247244176 = 22281^2 + 15724^2 .

It is a cyclic number.

It is not a de Polignac number, because 743687137 - 2¹⁵ = 743654369 is a prime.

It is not a weakly prime, because it can be changed into another prime (743687837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 371843568 + 371843569.

It is an arithmetic number, because the mean of its divisors is an integer number (371843569).

Almost surely, 2^743687137 is an apocalyptic number.

It is an amenable number.

743687137 is a deficient number, since it is larger than the sum of its proper divisors (1).

743687137 is an equidigital number, since it uses as much as digits as its factorization.

743687137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 592704, while the sum is 46.

The square root of 743687137 is about 27270.6277338825. The cubic root of 743687137 is about 906.0039475842.

The spelling of 743687137 in words is "seven hundred forty-three million, six hundred eighty-seven thousand, one hundred thirty-seven".