105055138 has 8 divisors (see below), whose sum is σ = 166852332. Its totient is φ = 49437696.

The previous prime is 105055133. The next prime is 105055141. The reversal of 105055138 is 831550501.

It can be written as a sum of positive squares in 2 ways, for example, as 100140049 + 4915089 = 10007^2 + 2217^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×105055138² = 22073164040398088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105055133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1544895 + ... + 1544962.

Almost surely, 2^105055138 is an apocalyptic number.

105055138 is a deficient number, since it is larger than the sum of its proper divisors (61797194).

105055138 is a wasteful number, since it uses less digits than its factorization.

105055138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3089876.

The product of its (nonzero) digits is 3000, while the sum is 28.

The square root of 105055138 is about 10249.6408717574. The cubic root of 105055138 is about 471.8519626956.

The spelling of 105055138 in words is "one hundred five million, fifty-five thousand, one hundred thirty-eight".