134725690909 has 2 divisors, whose sum is σ = 134725690910. Its totient is φ = 134725690908.

The previous prime is 134725690877. The next prime is 134725690921. The reversal of 134725690909 is 909096527431.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 134479891225 + 245799684 = 366715^2 + 15678^2 .

It is an emirp because it is prime and its reverse (909096527431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 134725690909 - 2⁵ = 134725690877 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 134725690909.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134725690609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67362845454 + 67362845455.

It is an arithmetic number, because the mean of its divisors is an integer number (67362845455).

Almost surely, 2^134725690909 is an apocalyptic number.

It is an amenable number.

134725690909 is a deficient number, since it is larger than the sum of its proper divisors (1).

134725690909 is an equidigital number, since it uses as much as digits as its factorization.

134725690909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3674160, while the sum is 55.

The spelling of 134725690909 in words is "one hundred thirty-four billion, seven hundred twenty-five million, six hundred ninety thousand, nine hundred nine".