105435078731 has 4 divisors (see below), whose sum is σ = 106879394952. Its totient is φ = 103990762512.

The previous prime is 105435078719. The next prime is 105435078733. The reversal of 105435078731 is 137870534501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 105435078731 - 2³⁴ = 88255209547 is a prime.

It is a super-2 number, since 2×105435078731² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105435078733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 722158001 + ... + 722158146.

It is an arithmetic number, because the mean of its divisors is an integer number (26719848738).

Almost surely, 2^105435078731 is an apocalyptic number.

105435078731 is a deficient number, since it is larger than the sum of its proper divisors (1444316221).

105435078731 is an equidigital number, since it uses as much as digits as its factorization.

105435078731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1444316220.

The product of its (nonzero) digits is 352800, while the sum is 44.

The spelling of 105435078731 in words is "one hundred five billion, four hundred thirty-five million, seventy-eight thousand, seven hundred thirty-one".