105490393 has 4 divisors (see below), whose sum is σ = 106122240. Its totient is φ = 104858548.

The previous prime is 105490387. The next prime is 105490439. The reversal of 105490393 is 393094501.

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: 393094501 = 2953 ⋅133117.

It is a cyclic number.

It is not a de Polignac number, because 105490393 - 2¹⁷ = 105359321 is a prime.

It is a super-2 number, since 2×105490393² = 22256446030588898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105499393) 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, 315673 + ... + 316006.

It is an arithmetic number, because the mean of its divisors is an integer number (26530560).

Almost surely, 2^105490393 is an apocalyptic number.

It is an amenable number.

105490393 is a deficient number, since it is larger than the sum of its proper divisors (631847).

105490393 is an equidigital number, since it uses as much as digits as its factorization.

105490393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631846.

The product of its (nonzero) digits is 14580, while the sum is 34.

The square root of 105490393 is about 10270.8516199972. The cubic root of 105490393 is about 472.5027096884.

The spelling of 105490393 in words is "one hundred five million, four hundred ninety thousand, three hundred ninety-three".