136135791973 has 8 divisors (see below), whose sum is σ = 139828451192. Its totient is φ = 132443833536.

The previous prime is 136135791941. The next prime is 136135791983. The reversal of 136135791973 is 379197531631.

It can be written as a sum of positive squares in 4 ways, for example, as 11990907009 + 124144884964 = 109503^2 + 352342^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 136135791973 - 2⁵ = 136135791941 is a prime.

It is a super-2 number, since 2×136135791973² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136135791983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231211 + ... + 570727.

It is an arithmetic number, because the mean of its divisors is an integer number (17478556399).

Almost surely, 2^136135791973 is an apocalyptic number.

It is an amenable number.

136135791973 is a deficient number, since it is larger than the sum of its proper divisors (3692659219).

136135791973 is a wasteful number, since it uses less digits than its factorization.

136135791973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350391.

The product of its digits is 3214890, while the sum is 55.

The spelling of 136135791973 in words is "one hundred thirty-six billion, one hundred thirty-five million, seven hundred ninety-one thousand, nine hundred seventy-three".