105144261 has 4 divisors (see below), whose sum is σ = 140192352. Its totient is φ = 70096172.

The previous prime is 105144257. The next prime is 105144287. The reversal of 105144261 is 162441501.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 105144261 - 2² = 105144257 is a prime.

It is a super-2 number, since 2×105144261² = 22110631242472242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105144211) 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, 17524041 + ... + 17524046.

It is an arithmetic number, because the mean of its divisors is an integer number (35048088).

Almost surely, 2^105144261 is an apocalyptic number.

It is an amenable number.

105144261 is a deficient number, since it is larger than the sum of its proper divisors (35048091).

105144261 is an equidigital number, since it uses as much as digits as its factorization.

105144261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35048090.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 105144261 is about 10253.9875658204. The cubic root of 105144261 is about 471.9853560644.

Adding to 105144261 its reverse (162441501), we get a palindrome (267585762).

The spelling of 105144261 in words is "one hundred five million, one hundred forty-four thousand, two hundred sixty-one".