105143690 has 16 divisors (see below), whose sum is σ = 189375840. Its totient is φ = 42031440.

The previous prime is 105143671. The next prime is 105143693. The reversal of 105143690 is 96341501.

It is a super-2 number, since 2×105143690² = 22110391093632200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105143693) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27941 + ... + 31479.

It is an arithmetic number, because the mean of its divisors is an integer number (11835990).

Almost surely, 2^105143690 is an apocalyptic number.

105143690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105143690 is a deficient number, since it is larger than the sum of its proper divisors (84232150).

105143690 is a wasteful number, since it uses less digits than its factorization.

105143690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6517.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 105143690 is about 10253.9597229558. The cubic root of 105143690 is about 471.9845016696.

The spelling of 105143690 in words is "one hundred five million, one hundred forty-three thousand, six hundred ninety".