100165393 has 4 divisors (see below), whose sum is σ = 100307380. Its totient is φ = 100023408.

The previous prime is 100165381. The next prime is 100165423. The reversal of 100165393 is 393561001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12873744 + 87291649 = 3588^2 + 9343^2 .

It is a cyclic number.

It is not a de Polignac number, because 100165393 - 2⁹ = 100164881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100165193) 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, 69930 + ... + 71347.

It is an arithmetic number, because the mean of its divisors is an integer number (25076845).

Almost surely, 2^100165393 is an apocalyptic number.

It is an amenable number.

100165393 is a deficient number, since it is larger than the sum of its proper divisors (141987).

100165393 is an equidigital number, since it uses as much as digits as its factorization.

100165393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141986.

The product of its (nonzero) digits is 2430, while the sum is 28.

The square root of 100165393 is about 10008.2662334692. The cubic root of 100165393 is about 464.4146378470.

The spelling of 100165393 in words is "one hundred million, one hundred sixty-five thousand, three hundred ninety-three".