105720088 has 32 divisors (see below), whose sum is σ = 202532400. Its totient is φ = 51724288.

The previous prime is 105720077. The next prime is 105720113. The reversal of 105720088 is 880027501.

It is a super-2 number, since 2×105720088² = 22353474013455488, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74328 + ... + 75736.

Almost surely, 2^105720088 is an apocalyptic number.

It is an amenable number.

105720088 is a deficient number, since it is larger than the sum of its proper divisors (96812312).

105720088 is a wasteful number, since it uses less digits than its factorization.

105720088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1611 (or 1607 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 31.

The square root of 105720088 is about 10282.0274265341. The cubic root of 105720088 is about 472.8454038735.

Adding to 105720088 its reverse (880027501), we get a palindrome (985747589).

The spelling of 105720088 in words is "one hundred five million, seven hundred twenty thousand, eighty-eight".