105081520 has 40 divisors (see below), whose sum is σ = 245203056. Its totient is φ = 41879808.

The previous prime is 105081481. The next prime is 105081611. The reversal of 105081520 is 25180501.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×105081520² = 22084251691020800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105081491 and 105081500.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21199 + ... + 25681.

Almost surely, 2^105081520 is an apocalyptic number.

105081520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

105081520 is an abundant number, since it is smaller than the sum of its proper divisors (140121536).

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

105081520 is a wasteful number, since it uses less digits than its factorization.

105081520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4789 (or 4783 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 105081520 is about 10250.9277628905. The cubic root of 105081520 is about 471.8914573738.

The spelling of 105081520 in words is "one hundred five million, eighty-one thousand, five hundred twenty".