137042747 has 2 divisors, whose sum is σ = 137042748. Its totient is φ = 137042746.

The previous prime is 137042713. The next prime is 137042771. The reversal of 137042747 is 747240731.

It is a happy number.

137042747 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 is an emirp because it is prime and its reverse (747240731) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 137042747 - 2²⁶ = 69933883 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (137042447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68521373 + 68521374.

It is an arithmetic number, because the mean of its divisors is an integer number (68521374).

Almost surely, 2^137042747 is an apocalyptic number.

137042747 is a deficient number, since it is larger than the sum of its proper divisors (1).

137042747 is an equidigital number, since it uses as much as digits as its factorization.

137042747 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32928, while the sum is 35.

The square root of 137042747 is about 11706.5258296388. The cubic root of 137042747 is about 515.5672851569.

The spelling of 137042747 in words is "one hundred thirty-seven million, forty-two thousand, seven hundred forty-seven".