105128948 has 6 divisors (see below), whose sum is σ = 183975666. Its totient is φ = 52564472.

The previous prime is 105128923. The next prime is 105128953. The reversal of 105128948 is 849821501.

It can be written as a sum of positive squares in only one way, i.e., 84860944 + 20268004 = 9212^2 + 4502^2 .

It is a super-2 number, since 2×105128948² = 22104191415173408, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13141115 + ... + 13141122.

It is an arithmetic number, because the mean of its divisors is an integer number (30662611).

Almost surely, 2^105128948 is an apocalyptic number.

It is an amenable number.

105128948 is a deficient number, since it is larger than the sum of its proper divisors (78846718).

105128948 is a wasteful number, since it uses less digits than its factorization.

105128948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26282241 (or 26282239 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 38.

The square root of 105128948 is about 10253.2408535058. The cubic root of 105128948 is about 471.9624419507.

The spelling of 105128948 in words is "one hundred five million, one hundred twenty-eight thousand, nine hundred forty-eight".