105021355 has 16 divisors (see below), whose sum is σ = 131886144. Its totient is φ = 80196480.

The previous prime is 105021347. The next prime is 105021373. The reversal of 105021355 is 553120501.

It is not a de Polignac number, because 105021355 - 2³ = 105021347 is a prime.

It is a super-2 number, since 2×105021355² = 22058970012072050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4450 + ... + 15160.

It is an arithmetic number, because the mean of its divisors is an integer number (8242884).

Almost surely, 2^105021355 is an apocalyptic number.

105021355 is a deficient number, since it is larger than the sum of its proper divisors (26864789).

105021355 is a wasteful number, since it uses less digits than its factorization.

105021355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10806.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 105021355 is about 10247.9927302863. The cubic root of 105021355 is about 471.8013788335.

Adding to 105021355 its reverse (553120501), we get a palindrome (658141856).

The spelling of 105021355 in words is "one hundred five million, twenty-one thousand, three hundred fifty-five".