10413521 has 4 divisors (see below), whose sum is σ = 10435392. Its totient is φ = 10391652.

The previous prime is 10413517. The next prime is 10413541. The reversal of 10413521 is 12531401.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12531401 = 787 ⋅15923.

It is a cyclic number.

It is not a de Polignac number, because 10413521 - 2² = 10413517 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 10413521.

It is not an unprimeable number, because it can be changed into a prime (10413541) 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, 10205 + ... + 11178.

It is an arithmetic number, because the mean of its divisors is an integer number (2608848).

Almost surely, 2^10413521 is an apocalyptic number.

It is an amenable number.

10413521 is a deficient number, since it is larger than the sum of its proper divisors (21871).

10413521 is an equidigital number, since it uses as much as digits as its factorization.

10413521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21870.

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

The square root of 10413521 is about 3226.9987604584. The cubic root of 10413521 is about 218.3731300272.

Adding to 10413521 its reverse (12531401), we get a palindrome (22944922).

The spelling of 10413521 in words is "ten million, four hundred thirteen thousand, five hundred twenty-one".