10235861 has 4 divisors (see below), whose sum is σ = 10403724. Its totient is φ = 10068000.

The previous prime is 10235839. The next prime is 10235867. The reversal of 10235861 is 16853201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 155236 + 10080625 = 394^2 + 3175^2 .

It is a cyclic number.

It is not a de Polignac number, because 10235861 - 2¹⁰ = 10234837 is a prime.

It is a super-2 number, since 2×10235861² = 209545700822642, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10235861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10235867) 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, 83840 + ... + 83961.

It is an arithmetic number, because the mean of its divisors is an integer number (2600931).

Almost surely, 2^10235861 is an apocalyptic number.

It is an amenable number.

10235861 is a deficient number, since it is larger than the sum of its proper divisors (167863).

10235861 is an equidigital number, since it uses as much as digits as its factorization.

10235861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167862.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 10235861 is about 3199.3532158860. The cubic root of 10235861 is about 217.1241476386.

The spelling of 10235861 in words is "ten million, two hundred thirty-five thousand, eight hundred sixty-one".