105170397 has 4 divisors (see below), whose sum is σ = 140227200. Its totient is φ = 70113596.

The previous prime is 105170393. The next prime is 105170399. The reversal of 105170397 is 793071501.

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: 793071501 = 3 ⋅264357167.

It is a cyclic number.

It is not a de Polignac number, because 105170397 - 2² = 105170393 is a prime.

It is a super-2 number, since 2×105170397² = 22121624810275218, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105170393) 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, 17528397 + ... + 17528402.

It is an arithmetic number, because the mean of its divisors is an integer number (35056800).

Almost surely, 2^105170397 is an apocalyptic number.

It is an amenable number.

105170397 is a deficient number, since it is larger than the sum of its proper divisors (35056803).

105170397 is an equidigital number, since it uses as much as digits as its factorization.

105170397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35056802.

The product of its (nonzero) digits is 6615, while the sum is 33.

The square root of 105170397 is about 10255.2619176694. The cubic root of 105170397 is about 472.0244603933.

The spelling of 105170397 in words is "one hundred five million, one hundred seventy thousand, three hundred ninety-seven".