105144451 has 4 divisors (see below), whose sum is σ = 105384400. Its totient is φ = 104904504.

The previous prime is 105144437. The next prime is 105144469. The reversal of 105144451 is 154441501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 105144451 - 2⁷ = 105144323 is a prime.

It is a super-2 number, since 2×105144451² = 22110711152182802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105144551) 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, 119316 + ... + 120193.

It is an arithmetic number, because the mean of its divisors is an integer number (26346100).

Almost surely, 2^105144451 is an apocalyptic number.

105144451 is a deficient number, since it is larger than the sum of its proper divisors (239949).

105144451 is an equidigital number, since it uses as much as digits as its factorization.

105144451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239948.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 105144451 is about 10253.9968305047. The cubic root of 105144451 is about 471.9856403632.

Adding to 105144451 its reverse (154441501), we get a palindrome (259585952).

The spelling of 105144451 in words is "one hundred five million, one hundred forty-four thousand, four hundred fifty-one".