105681325 has 24 divisors (see below), whose sum is σ = 142411520. Its totient is φ = 77500800.

The previous prime is 105681319. The next prime is 105681337. The reversal of 105681325 is 523186501.

It is a de Polignac number, because none of the positive numbers 2^k-105681325 is a prime.

It is a super-2 number, since 2×105681325² = 22337084907511250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11137 + ... + 18313.

Almost surely, 2^105681325 is an apocalyptic number.

It is an amenable number.

105681325 is a deficient number, since it is larger than the sum of its proper divisors (36730195).

105681325 is a wasteful number, since it uses less digits than its factorization.

105681325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7237 (or 7232 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 105681325 is about 10280.1422655526. The cubic root of 105681325 is about 472.7876061319.

The spelling of 105681325 in words is "one hundred five million, six hundred eighty-one thousand, three hundred twenty-five".