136931503965 has 16 divisors (see below), whose sum is σ = 221259620736. Its totient is φ = 72307064000.

The previous prime is 136931503963. The next prime is 136931503987. The reversal of 136931503965 is 569305139631.

It is a happy number.

It is not a de Polignac number, because 136931503965 - 2¹ = 136931503963 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136931503963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45190401 + ... + 45193430.

It is an arithmetic number, because the mean of its divisors is an integer number (13828726296).

Almost surely, 2^136931503965 is an apocalyptic number.

136931503965 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

136931503965 is a deficient number, since it is larger than the sum of its proper divisors (84328116771).

136931503965 is a wasteful number, since it uses less digits than its factorization.

136931503965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90383940.

The product of its (nonzero) digits is 1968300, while the sum is 51.

The spelling of 136931503965 in words is "one hundred thirty-six billion, nine hundred thirty-one million, five hundred three thousand, nine hundred sixty-five".