100392065 has 8 divisors (see below), whose sum is σ = 120524328. Its totient is φ = 80277760.

The previous prime is 100392041. The next prime is 100392101. The reversal of 100392065 is 560293001.

It can be written as a sum of positive squares in 4 ways, for example, as 1270129 + 99121936 = 1127^2 + 9956^2 .

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

It is not a de Polignac number, because 100392065 - 2¹⁸ = 100129921 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18905 + ... + 23625.

It is an arithmetic number, because the mean of its divisors is an integer number (15065541).

Almost surely, 2^100392065 is an apocalyptic number.

It is an amenable number.

100392065 is a deficient number, since it is larger than the sum of its proper divisors (20132263).

100392065 is an equidigital number, since it uses as much as digits as its factorization.

100392065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8979.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 100392065 is about 10019.5840732038. The cubic root of 100392065 is about 464.7646938348.

The spelling of 100392065 in words is "one hundred million, three hundred ninety-two thousand, sixty-five".