100787207 has 4 divisors (see below), whose sum is σ = 100923600. Its totient is φ = 100650816.

The previous prime is 100787147. The next prime is 100787213. The reversal of 100787207 is 702787001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 702787001 = 7 ⋅100398143.

It is a cyclic number.

It is not a de Polignac number, because 100787207 - 2¹⁴ = 100770823 is a prime.

It is a super-2 number, since 2×100787207² = 20316122189721698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100787287) 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, 67082 + ... + 68567.

It is an arithmetic number, because the mean of its divisors is an integer number (25230900).

Almost surely, 2^100787207 is an apocalyptic number.

100787207 is a deficient number, since it is larger than the sum of its proper divisors (136393).

100787207 is an equidigital number, since it uses as much as digits as its factorization.

100787207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136392.

The product of its (nonzero) digits is 5488, while the sum is 32.

The square root of 100787207 is about 10039.2831915431. The cubic root of 100787207 is about 465.3736650405.

The spelling of 100787207 in words is "one hundred million, seven hundred eighty-seven thousand, two hundred seven".