10621081 has 3 divisors (see below), whose sum is σ = 10624341. Its totient is φ = 10617822.

The previous prime is 10621063. The next prime is 10621097. The reversal of 10621081 is 18012601.

The square root of 10621081 is 3259.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 18012601 = 1031 ⋅17471.

It is not a de Polignac number, because 10621081 - 2⁵ = 10621049 is a prime.

It is a super-2 number, since 2×10621081² = 225614723217122, which contains 22 as substring.

It is a hoax number, since the sum of its digits (19) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10621001) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1630 + ... + 4888.

It is an arithmetic number, because the mean of its divisors is an integer number (3541447).

Almost surely, 2^10621081 is an apocalyptic number.

10621081 is the 3259-th square number.

10621081 is the 1630-th centered octagonal number.

It is an amenable number.

10621081 is a deficient number, since it is larger than the sum of its proper divisors (3260).

10621081 is an frugal number, since it uses more digits than its factorization.

10621081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6518 (or 3259 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

The cubic root of 10621081 is about 219.8144509891.

Adding to 10621081 its reverse (18012601), we get a palindrome (28633682).

The spelling of 10621081 in words is "ten million, six hundred twenty-one thousand, eighty-one".