100356943 has 4 divisors (see below), whose sum is σ = 100615320. Its totient is φ = 100098568.

The previous prime is 100356941. The next prime is 100356947. The reversal of 100356943 is 349653001.

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 100356943 - 2¹ = 100356941 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 (100356941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128605 + ... + 129382.

It is an arithmetic number, because the mean of its divisors is an integer number (25153830).

Almost surely, 2^100356943 is an apocalyptic number.

100356943 is a deficient number, since it is larger than the sum of its proper divisors (258377).

100356943 is an equidigital number, since it uses as much as digits as its factorization.

100356943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258376.

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 100356943 is about 10017.8312523220. The cubic root of 100356943 is about 464.7104884567.

The spelling of 100356943 in words is "one hundred million, three hundred fifty-six thousand, nine hundred forty-three".