100145258827 has 4 divisors (see below), whose sum is σ = 100146774040. Its totient is φ = 100143743616.

The previous prime is 100145258821. The next prime is 100145258839. The reversal of 100145258827 is 728852541001.

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 100145258827 - 2²³ = 100136870219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100145258821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 653718 + ... + 792235.

It is an arithmetic number, because the mean of its divisors is an integer number (25036693510).

Almost surely, 2^100145258827 is an apocalyptic number.

100145258827 is a deficient number, since it is larger than the sum of its proper divisors (1515213).

100145258827 is an equidigital number, since it uses as much as digits as its factorization.

100145258827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1515212.

The product of its (nonzero) digits is 179200, while the sum is 43.

Adding to 100145258827 its reverse (728852541001), we get a palindrome (828997799828).

The spelling of 100145258827 in words is "one hundred billion, one hundred forty-five million, two hundred fifty-eight thousand, eight hundred twenty-seven".