10135621 has 8 divisors (see below), whose sum is σ = 10869120. Its totient is φ = 9417408.

The previous prime is 10135613. The next prime is 10135633. The reversal of 10135621 is 12653101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10135621 - 2³ = 10135613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10135681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2431 + ... + 5116.

It is an arithmetic number, because the mean of its divisors is an integer number (1358640).

Almost surely, 2^10135621 is an apocalyptic number.

It is an amenable number.

10135621 is a deficient number, since it is larger than the sum of its proper divisors (733499).

10135621 is an equidigital number, since it uses as much as digits as its factorization.

10135621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7643.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 10135621 is about 3183.6490070358. The cubic root of 10135621 is about 216.4130542109.

Adding to 10135621 its reverse (12653101), we get a palindrome (22788722).

The spelling of 10135621 in words is "ten million, one hundred thirty-five thousand, six hundred twenty-one".