105226987 has 2 divisors, whose sum is σ = 105226988. Its totient is φ = 105226986.

The previous prime is 105226969. The next prime is 105226999. The reversal of 105226987 is 789622501.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105226987 is a prime.

It is a super-2 number, since 2×105226987² = 22145437586196338, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (105226687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52613493 + 52613494.

It is an arithmetic number, because the mean of its divisors is an integer number (52613494).

Almost surely, 2^105226987 is an apocalyptic number.

105226987 is a deficient number, since it is larger than the sum of its proper divisors (1).

105226987 is an equidigital number, since it uses as much as digits as its factorization.

105226987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 105226987 is about 10258.0206180335. The cubic root of 105226987 is about 472.1091073896.

The spelling of 105226987 in words is "one hundred five million, two hundred twenty-six thousand, nine hundred eighty-seven".