100145287 has 12 divisors (see below), whose sum is σ = 111637008. Its totient is φ = 89751200.

The previous prime is 100145281. The next prime is 100145291. The reversal of 100145287 is 782541001.

It is a de Polignac number, because none of the positive numbers 2^k-100145287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100145281) 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 11 ways as a sum of consecutive naturals, for example, 2763 + ... + 14419.

It is an arithmetic number, because the mean of its divisors is an integer number (9303084).

Almost surely, 2^100145287 is an apocalyptic number.

100145287 is a deficient number, since it is larger than the sum of its proper divisors (11491721).

100145287 is a wasteful number, since it uses less digits than its factorization.

100145287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11750 (or 11739 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 100145287 is about 10007.2617133759. The cubic root of 100145287 is about 464.3835620923.

Adding to 100145287 its reverse (782541001), we get a palindrome (882686288).

The spelling of 100145287 in words is "one hundred million, one hundred forty-five thousand, two hundred eighty-seven".