100545121 has 16 divisors (see below), whose sum is σ = 109670400. Its totient is φ = 91895760.

The previous prime is 100545119. The next prime is 100545209. The reversal of 100545121 is 121545001.

It is a cyclic number.

It is not a de Polignac number, because 100545121 - 2¹ = 100545119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100545101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58330 + ... + 60028.

It is an arithmetic number, because the mean of its divisors is an integer number (6854400).

Almost surely, 2^100545121 is an apocalyptic number.

It is an amenable number.

100545121 is a deficient number, since it is larger than the sum of its proper divisors (9125279).

100545121 is a wasteful number, since it uses less digits than its factorization.

100545121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1836.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 100545121 is about 10027.2190062848. The cubic root of 100545121 is about 465.0007646343. Note that the first 3 decimals are identical.

The spelling of 100545121 in words is "one hundred million, five hundred forty-five thousand, one hundred twenty-one".