731136107 has 4 divisors (see below), whose sum is σ = 787377360. Its totient is φ = 674894856.

The previous prime is 731136053. The next prime is 731136137. The reversal of 731136107 is 701631137.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 701631137 = 263 ⋅2667799.

It is a cyclic number.

It is not a de Polignac number, because 731136107 - 2²⁰ = 730087531 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 731136107.

It is not an unprimeable number, because it can be changed into a prime (731136137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28120607 + ... + 28120632.

It is an arithmetic number, because the mean of its divisors is an integer number (196844340).

Almost surely, 2^731136107 is an apocalyptic number.

731136107 is a deficient number, since it is larger than the sum of its proper divisors (56241253).

731136107 is a wasteful number, since it uses less digits than its factorization.

731136107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56241252.

The product of its (nonzero) digits is 2646, while the sum is 29.

The square root of 731136107 is about 27039.5286016602. The cubic root of 731136107 is about 900.8781991734.

The spelling of 731136107 in words is "seven hundred thirty-one million, one hundred thirty-six thousand, one hundred seven".