100554143 has 4 divisors (see below), whose sum is σ = 100641768. Its totient is φ = 100466520.

The previous prime is 100554131. The next prime is 100554149. The reversal of 100554143 is 341455001.

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 100554143 - 2⁴ = 100554127 is a prime.

It is a super-2 number, since 2×100554143² = 20222271348928898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100554149) 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, 42068 + ... + 44393.

It is an arithmetic number, because the mean of its divisors is an integer number (25160442).

Almost surely, 2^100554143 is an apocalyptic number.

100554143 is a deficient number, since it is larger than the sum of its proper divisors (87625).

100554143 is an equidigital number, since it uses as much as digits as its factorization.

100554143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87624.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 100554143 is about 10027.6688716770. The cubic root of 100554143 is about 465.0146725243.

The spelling of 100554143 in words is "one hundred million, five hundred fifty-four thousand, one hundred forty-three".