137261345740723 has 2 divisors, whose sum is σ = 137261345740724. Its totient is φ = 137261345740722.

The previous prime is 137261345740669. The next prime is 137261345740837. The reversal of 137261345740723 is 327047543162731.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 137261345740723 - 2¹⁷ = 137261345609651 is a prime.

It is a super-4 number, since 4×137261345740723⁴ (a number of 58 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (137261345743723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68630672870361 + 68630672870362.

It is an arithmetic number, because the mean of its divisors is an integer number (68630672870362).

Almost surely, 2^{137261345740723} is an apocalyptic number.

137261345740723 is a deficient number, since it is larger than the sum of its proper divisors (1).

137261345740723 is an equidigital number, since it uses as much as digits as its factorization.

137261345740723 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17781120, while the sum is 55.

The spelling of 137261345740723 in words is "one hundred thirty-seven trillion, two hundred sixty-one billion, three hundred forty-five million, seven hundred forty thousand, seven hundred twenty-three".