10421545 has 16 divisors (see below), whose sum is σ = 12999168. Its totient is φ = 8015040.

The previous prime is 10421539. The next prime is 10421569. The reversal of 10421545 is 54512401.

It is not a de Polignac number, because 10421545 - 2⁵ = 10421513 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 13972 + ... + 14698.

It is an arithmetic number, because the mean of its divisors is an integer number (812448).

Almost surely, 2^10421545 is an apocalyptic number.

It is an amenable number.

10421545 is a deficient number, since it is larger than the sum of its proper divisors (2577623).

10421545 is an equidigital number, since it uses as much as digits as its factorization.

10421545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 10421545 is about 3228.2417815275. The cubic root of 10421545 is about 218.4292037969.

Adding to 10421545 its reverse (54512401), we get a palindrome (64933946).

The spelling of 10421545 in words is "ten million, four hundred twenty-one thousand, five hundred forty-five".