100397553 has 8 divisors (see below), whose sum is σ = 139683648. Its totient is φ = 64021584.

The previous prime is 100397551. The next prime is 100397569. The reversal of 100397553 is 355793001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 100397553 - 2¹ = 100397551 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (100397551) 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 7 ways as a sum of consecutive naturals, for example, 727450 + ... + 727587.

It is an arithmetic number, because the mean of its divisors is an integer number (17460456).

Almost surely, 2^100397553 is an apocalyptic number.

It is an amenable number.

100397553 is a deficient number, since it is larger than the sum of its proper divisors (39286095).

100397553 is a wasteful number, since it uses less digits than its factorization.

100397553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1455063.

The product of its (nonzero) digits is 14175, while the sum is 33.

The square root of 100397553 is about 10019.8579331246. The cubic root of 100397553 is about 464.7731625724.

The spelling of 100397553 in words is "one hundred million, three hundred ninety-seven thousand, five hundred fifty-three".