10521045 has 36 divisors (see below), whose sum is σ = 19396260. Its totient is φ = 5274624.

The previous prime is 10521031. The next prime is 10521053. The reversal of 10521045 is 54012501.

It can be written as a sum of positive squares in 6 ways, for example, as 1912689 + 8608356 = 1383^2 + 2934^2 .

It is not a de Polignac number, because 10521045 - 2⁵ = 10521013 is a prime.

It is a super-2 number, since 2×10521045² = 221384775784050, which contains 22 as substring.

It is a nialpdrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 12601 + ... + 13409.

It is an arithmetic number, because the mean of its divisors is an integer number (538785).

Almost surely, 2^10521045 is an apocalyptic number.

10521045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10521045 is a deficient number, since it is larger than the sum of its proper divisors (8875215).

10521045 is a wasteful number, since it uses less digits than its factorization.

10521045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854 (or 834 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 10521045 is about 3243.6160376962. The cubic root of 10521045 is about 219.1221561570.

Adding to 10521045 its reverse (54012501), we get a palindrome (64533546).

The spelling of 10521045 in words is "ten million, five hundred twenty-one thousand, forty-five".