10521413 has 4 divisors (see below), whose sum is σ = 12024480. Its totient is φ = 9018348.

The previous prime is 10521377. The next prime is 10521437. The reversal of 10521413 is 31412501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10521413 - 2⁸ = 10521157 is a prime.

It is a super-2 number, since 2×10521413² = 221400263033138, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10521391 and 10521400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10521013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 751523 + ... + 751536.

It is an arithmetic number, because the mean of its divisors is an integer number (3006120).

Almost surely, 2^10521413 is an apocalyptic number.

It is an amenable number.

10521413 is a deficient number, since it is larger than the sum of its proper divisors (1503067).

10521413 is an equidigital number, since it uses as much as digits as its factorization.

10521413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1503066.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 10521413 is about 3243.6727640130. The cubic root of 10521413 is about 219.1247109100.

Adding to 10521413 its reverse (31412501), we get a palindrome (41933914).

The spelling of 10521413 in words is "ten million, five hundred twenty-one thousand, four hundred thirteen".