10521349 has 4 divisors (see below), whose sum is σ = 10579660. Its totient is φ = 10463040.

The previous prime is 10521331. The next prime is 10521359. The reversal of 10521349 is 94312501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94312501 = 7393 ⋅12757.

It can be written as a sum of positive squares in 2 ways, for example, as 4809249 + 5712100 = 2193^2 + 2390^2 .

It is a cyclic number.

It is not a de Polignac number, because 10521349 - 2⁷ = 10521221 is a prime.

It is a super-2 number, since 2×10521349² = 221397569559602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10521359) 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, 28884 + ... + 29245.

It is an arithmetic number, because the mean of its divisors is an integer number (2644915).

Almost surely, 2^10521349 is an apocalyptic number.

It is an amenable number.

10521349 is a deficient number, since it is larger than the sum of its proper divisors (58311).

10521349 is an equidigital number, since it uses as much as digits as its factorization.

10521349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58310.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 10521349 is about 3243.6628986379. The cubic root of 10521349 is about 219.1242666094.

It can be divided in two parts, 1052 and 1349, that added together give a 4-th power (2401 = 7⁴).

The spelling of 10521349 in words is "ten million, five hundred twenty-one thousand, three hundred forty-nine".