100287145 has 16 divisors (see below), whose sum is σ = 139477248. Its totient is φ = 67798080.

The previous prime is 100287119. The next prime is 100287193. The reversal of 100287145 is 541782001.

It is not a de Polignac number, because 100287145 - 2⁵ = 100287113 is a prime.

It is a super-2 number, since 2×100287145² = 20115022904502050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17694 + ... + 22663.

It is an arithmetic number, because the mean of its divisors is an integer number (8717328).

Almost surely, 2^100287145 is an apocalyptic number.

It is an amenable number.

100287145 is a deficient number, since it is larger than the sum of its proper divisors (39190103).

100287145 is an equidigital number, since it uses as much as digits as its factorization.

100287145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40440.

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

The square root of 100287145 is about 10014.3469582395. The cubic root of 100287145 is about 464.6027284808.

The spelling of 100287145 in words is "one hundred million, two hundred eighty-seven thousand, one hundred forty-five".