105421158 has 24 divisors (see below), whose sum is σ = 240435000. Its totient is φ = 33290784.

The previous prime is 105421157. The next prime is 105421181. The reversal of 105421158 is 851124501.

105421158 is a `hidden beast` number, since 1 + 0 + 542 + 115 + 8 = 666.

It is a super-2 number, since 2×105421158² = 22227241108121928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105421157) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 153783 + ... + 154466.

It is an arithmetic number, because the mean of its divisors is an integer number (10018125).

Almost surely, 2^105421158 is an apocalyptic number.

105421158 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

105421158 is an abundant number, since it is smaller than the sum of its proper divisors (135013842).

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

105421158 is a wasteful number, since it uses less digits than its factorization.

105421158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308276 (or 308273 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 27.

The square root of 105421158 is about 10267.4806062636. The cubic root of 105421158 is about 472.3993167517.

Adding to 105421158 its reverse (851124501), we get a palindrome (956545659).

The spelling of 105421158 in words is "one hundred five million, four hundred twenty-one thousand, one hundred fifty-eight".