100802945 has 16 divisors (see below), whose sum is σ = 128314368. Its totient is φ = 75759360.

The previous prime is 100802899. The next prime is 100802959. The reversal of 100802945 is 549208001.

It is not a de Polignac number, because 100802945 - 2¹² = 100798849 is a prime.

It is a super-2 number, since 2×100802945² = 20322467441346050, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91850 + ... + 92940.

It is an arithmetic number, because the mean of its divisors is an integer number (8019648).

Almost surely, 2^100802945 is an apocalyptic number.

It is an amenable number.

100802945 is a deficient number, since it is larger than the sum of its proper divisors (27511423).

100802945 is a wasteful number, since it uses less digits than its factorization.

100802945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2200.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 100802945 is about 10040.0669818483. The cubic root of 100802945 is about 465.3978865986.

The spelling of 100802945 in words is "one hundred million, eight hundred two thousand, nine hundred forty-five".