105442487 has 2 divisors, whose sum is σ = 105442488. Its totient is φ = 105442486.

The previous prime is 105442471. The next prime is 105442507. The reversal of 105442487 is 784244501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 105442487 - 2⁴ = 105442471 is a prime.

It is a super-2 number, since 2×105442487² = 22236236129490338, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105442427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52721243 + 52721244.

It is an arithmetic number, because the mean of its divisors is an integer number (52721244).

Almost surely, 2^105442487 is an apocalyptic number.

105442487 is a deficient number, since it is larger than the sum of its proper divisors (1).

105442487 is an equidigital number, since it uses as much as digits as its factorization.

105442487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35840, while the sum is 35.

The square root of 105442487 is about 10268.5192213873. The cubic root of 105442487 is about 472.4311734991.

Adding to 105442487 its reverse (784244501), we get a palindrome (889686988).

It can be divided in two parts, 10544 and 2487, that added together give a palindrome (13031).

The spelling of 105442487 in words is "one hundred five million, four hundred forty-two thousand, four hundred eighty-seven".