100745687 has 4 divisors (see below), whose sum is σ = 115137936. Its totient is φ = 86353440.

The previous prime is 100745683. The next prime is 100745693. The reversal of 100745687 is 786547001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 786547001 = 20407 ⋅38543.

It is a cyclic number.

It is not a de Polignac number, because 100745687 - 2² = 100745683 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 100745687.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100745683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7196114 + ... + 7196127.

It is an arithmetic number, because the mean of its divisors is an integer number (28784484).

Almost surely, 2^100745687 is an apocalyptic number.

100745687 is a deficient number, since it is larger than the sum of its proper divisors (14392249).

100745687 is an equidigital number, since it uses as much as digits as its factorization.

100745687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14392248.

The product of its (nonzero) digits is 47040, while the sum is 38.

The square root of 100745687 is about 10037.2151018099. The cubic root of 100745687 is about 465.3097516099.

The spelling of 100745687 in words is "one hundred million, seven hundred forty-five thousand, six hundred eighty-seven".