105191380 has 24 divisors (see below), whose sum is σ = 252459648. Its totient is φ = 36065568.

The previous prime is 105191377. The next prime is 105191417. The reversal of 105191380 is 83191501.

It is a super-2 number, since 2×105191380² = 22130452852608800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 375544 + ... + 375823.

It is an arithmetic number, because the mean of its divisors is an integer number (10519152).

Almost surely, 2^105191380 is an apocalyptic number.

105191380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

105191380 is an abundant number, since it is smaller than the sum of its proper divisors (147268268).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

105191380 is a wasteful number, since it uses less digits than its factorization.

105191380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751383 (or 751381 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 28.

The square root of 105191380 is about 10256.2849024391. The cubic root of 105191380 is about 472.0558501852.

The spelling of 105191380 in words is "one hundred five million, one hundred ninety-one thousand, three hundred eighty".