105125998 has 4 divisors (see below), whose sum is σ = 157689000. Its totient is φ = 52562998.

The previous prime is 105125989. The next prime is 105126001. The reversal of 105125998 is 899521501.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×105125998² = 22102950910992008, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 105125998.

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 as a sum of consecutive naturals, namely, 26281498 + ... + 26281501.

It is an arithmetic number, because the mean of its divisors is an integer number (39422250).

Almost surely, 2^105125998 is an apocalyptic number.

105125998 is a deficient number, since it is larger than the sum of its proper divisors (52563002).

105125998 is an equidigital number, since it uses as much as digits as its factorization.

105125998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52563001.

The product of its (nonzero) digits is 32400, while the sum is 40.

The square root of 105125998 is about 10253.0969955424. The cubic root of 105125998 is about 471.9580273651.

The spelling of 105125998 in words is "one hundred five million, one hundred twenty-five thousand, nine hundred ninety-eight".