105377021 has 8 divisors (see below), whose sum is σ = 111118080. Its totient is φ = 99655488.

The previous prime is 105376969. The next prime is 105377071. The reversal of 105377021 is 120773501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 105377021 - 2²² = 101182717 is a prime.

It is a super-2 number, since 2×105377021² = 22208633109668882, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105377071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6965 + ... + 16101.

It is an arithmetic number, because the mean of its divisors is an integer number (13889760).

Almost surely, 2^105377021 is an apocalyptic number.

It is an amenable number.

105377021 is a deficient number, since it is larger than the sum of its proper divisors (5741059).

105377021 is an equidigital number, since it uses as much as digits as its factorization.

105377021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9763.

The product of its (nonzero) digits is 1470, while the sum is 26.

The square root of 105377021 is about 10265.3310224269. The cubic root of 105377021 is about 472.3333805914. Note that the first 4 decimals are identical.

The spelling of 105377021 in words is "one hundred five million, three hundred seventy-seven thousand, twenty-one".