105676139 has 4 divisors (see below), whose sum is σ = 107467320. Its totient is φ = 103884960.

The previous prime is 105676133. The next prime is 105676141. The reversal of 105676139 is 931676501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 931676501 = 7 ⋅133096643.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105676139 is a prime.

It is a super-2 number, since 2×105676139² = 22334892707894642, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105676133) 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, 895502 + ... + 895619.

It is an arithmetic number, because the mean of its divisors is an integer number (26866830).

Almost surely, 2^105676139 is an apocalyptic number.

105676139 is a deficient number, since it is larger than the sum of its proper divisors (1791181).

105676139 is an equidigital number, since it uses as much as digits as its factorization.

105676139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1791180.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 105676139 is about 10279.8900285947. The cubic root of 105676139 is about 472.7798724520.

The spelling of 105676139 in words is "one hundred five million, six hundred seventy-six thousand, one hundred thirty-nine".