100023197 has 4 divisors (see below), whose sum is σ = 100994400. Its totient is φ = 99051996.

The previous prime is 100023139. The next prime is 100023221. The reversal of 100023197 is 791320001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 791320001 = 15061 ⋅52541.

It is a cyclic number.

It is not a de Polignac number, because 100023197 - 2²² = 95828893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100023127) 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, 485447 + ... + 485652.

It is an arithmetic number, because the mean of its divisors is an integer number (25248600).

Almost surely, 2^100023197 is an apocalyptic number.

It is an amenable number.

100023197 is a deficient number, since it is larger than the sum of its proper divisors (971203).

100023197 is an equidigital number, since it uses as much as digits as its factorization.

100023197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971202.

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 100023197 is about 10001.1597827452. The cubic root of 100023197 is about 464.1947708985.

Adding to 100023197 its reverse (791320001), we get a palindrome (891343198).

The spelling of 100023197 in words is "one hundred million, twenty-three thousand, one hundred ninety-seven".