105420002 has 4 divisors (see below), whose sum is σ = 158130006. Its totient is φ = 52710000.

The previous prime is 105420001. The next prime is 105420041. The reversal of 105420002 is 200024501.

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

It can be written as a sum of positive squares in only one way, i.e., 53421481 + 51998521 = 7309^2 + 7211^2 .

It is a super-2 number, since 2×105420002² = 22226753643360008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105420001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26354999 + ... + 26355002.

Almost surely, 2^105420002 is an apocalyptic number.

105420002 is a deficient number, since it is larger than the sum of its proper divisors (52710004).

105420002 is an equidigital number, since it uses as much as digits as its factorization.

105420002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52710003.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 105420002 is about 10267.4243118710. The cubic root of 105420002 is about 472.3975900408.

Adding to 105420002 its reverse (200024501), we get a palindrome (305444503).

The spelling of 105420002 in words is "one hundred five million, four hundred twenty thousand, two".