10219261 has 12 divisors (see below), whose sum is σ = 11720052. Its totient is φ = 8875776.

The previous prime is 10219259. The next prime is 10219267. The reversal of 10219261 is 16291201.

It can be written as a sum of positive squares in 6 ways, for example, as 1988100 + 8231161 = 1410^2 + 2869^2 .

It is not a de Polignac number, because 10219261 - 2¹ = 10219259 is a prime.

It is a super-2 number, since 2×10219261² = 208866590772242, 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 (10219267) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1095 + ... + 4651.

It is an arithmetic number, because the mean of its divisors is an integer number (976671).

Almost surely, 2^10219261 is an apocalyptic number.

It is an amenable number.

10219261 is a deficient number, since it is larger than the sum of its proper divisors (1500791).

10219261 is a wasteful number, since it uses less digits than its factorization.

10219261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3600 (or 3587 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 10219261 is about 3196.7578888618. The cubic root of 10219261 is about 217.0067104892.

The spelling of 10219261 in words is "ten million, two hundred nineteen thousand, two hundred sixty-one".