105143461 has 4 divisors (see below), whose sum is σ = 105167500. Its totient is φ = 105119424.

The previous prime is 105143459. The next prime is 105143483. The reversal of 105143461 is 164341501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 164341501 = 137 ⋅1199573.

It can be written as a sum of positive squares in 2 ways, for example, as 53217025 + 51926436 = 7295^2 + 7206^2 .

It is a cyclic number.

It is not a de Polignac number, because 105143461 - 2¹ = 105143459 is a prime.

It is a super-2 number, since 2×105143461² = 22110294782117042, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105143411) 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, 3396 + ... + 14893.

It is an arithmetic number, because the mean of its divisors is an integer number (26291875).

Almost surely, 2^105143461 is an apocalyptic number.

It is an amenable number.

105143461 is a deficient number, since it is larger than the sum of its proper divisors (24039).

105143461 is an equidigital number, since it uses as much as digits as its factorization.

105143461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24038.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 105143461 is about 10253.9485565318. The cubic root of 105143461 is about 471.9841590130.

Adding to 105143461 its reverse (164341501), we get a palindrome (269484962).

The spelling of 105143461 in words is "one hundred five million, one hundred forty-three thousand, four hundred sixty-one".