105545605431 has 32 divisors (see below), whose sum is σ = 162693688320. Its totient is φ = 59613878016.

The previous prime is 105545605387. The next prime is 105545605519. The reversal of 105545605431 is 134506545501.

It is not a de Polignac number, because 105545605431 - 2⁶ = 105545605367 is a prime.

It is a super-2 number, since 2×105545605431² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 105545605431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105545605031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6789790 + ... + 6805316.

It is an arithmetic number, because the mean of its divisors is an integer number (5084177760).

Almost surely, 2^105545605431 is an apocalyptic number.

105545605431 is a deficient number, since it is larger than the sum of its proper divisors (57148082889).

105545605431 is a wasteful number, since it uses less digits than its factorization.

105545605431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19263.

The product of its (nonzero) digits is 180000, while the sum is 39.

The spelling of 105545605431 in words is "one hundred five billion, five hundred forty-five million, six hundred five thousand, four hundred thirty-one".