10621261 has 16 divisors (see below), whose sum is σ = 12475008. Its totient is φ = 8856000.

The previous prime is 10621241. The next prime is 10621283. The reversal of 10621261 is 16212601.

10621261 = T₂₁₈ + T₂₁₉ + ... + T₄₁₉.

It is a cyclic number.

It is not a de Polignac number, because 10621261 - 2¹⁷ = 10490189 is a prime.

It is a super-2 number, since 2×10621261² = 225622370460242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10621211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58591 + ... + 58771.

It is an arithmetic number, because the mean of its divisors is an integer number (779688).

Almost surely, 2^10621261 is an apocalyptic number.

It is an amenable number.

10621261 is a deficient number, since it is larger than the sum of its proper divisors (1853747).

10621261 is a wasteful number, since it uses less digits than its factorization.

10621261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 10621261 is about 3259.0276157161. The cubic root of 10621261 is about 219.8156927453.

Adding to 10621261 its reverse (16212601), we get a palindrome (26833862).

The spelling of 10621261 in words is "ten million, six hundred twenty-one thousand, two hundred sixty-one".