100155303 has 12 divisors (see below), whose sum is σ = 144755520. Its totient is φ = 66730176.

The previous prime is 100155301. The next prime is 100155323. The reversal of 100155303 is 303551001.

It is a happy number.

It is not a de Polignac number, because 100155303 - 2¹ = 100155301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100155301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28138 + ... + 31496.

It is an arithmetic number, because the mean of its divisors is an integer number (12062960).

Almost surely, 2^100155303 is an apocalyptic number.

100155303 is a deficient number, since it is larger than the sum of its proper divisors (44600217).

100155303 is a wasteful number, since it uses less digits than its factorization.

100155303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6678 (or 6675 counting only the distinct ones).

The product of its (nonzero) digits is 225, while the sum is 18.

The square root of 100155303 is about 10007.7621374611. The cubic root of 100155303 is about 464.3990433025.

It can be divided in two parts, 100 and 155303, that added together give a triangular number (155403 = T₅₅₇).

The spelling of 100155303 in words is "one hundred million, one hundred fifty-five thousand, three hundred three".