137261345740669 has 2 divisors, whose sum is σ = 137261345740670. Its totient is φ = 137261345740668.

The previous prime is 137261345740657. The next prime is 137261345740723. The reversal of 137261345740669 is 966047543162731.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71592413112900 + 65668932627769 = 8461230^2 + 8103637^2 .

It is a cyclic number.

It is not a de Polignac number, because 137261345740669 - 2¹⁵ = 137261345707901 is a prime.

It is a super-4 number, since 4×137261345740669⁴ (a number of 58 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 137261345740669.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (137261345744669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68630672870334 + 68630672870335.

It is an arithmetic number, because the mean of its divisors is an integer number (68630672870335).

Almost surely, 2^{137261345740669} is an apocalyptic number.

It is an amenable number.

137261345740669 is a deficient number, since it is larger than the sum of its proper divisors (1).

137261345740669 is an equidigital number, since it uses as much as digits as its factorization.

137261345740669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 137168640, while the sum is 64.

The spelling of 137261345740669 in words is "one hundred thirty-seven trillion, two hundred sixty-one billion, three hundred forty-five million, seven hundred forty thousand, six hundred sixty-nine".