10142261 has 4 divisors (see below), whose sum is σ = 10151232. Its totient is φ = 10133292.

The previous prime is 10142233. The next prime is 10142267. The reversal of 10142261 is 16224101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 16224101 = 2683 ⋅6047.

It is a cyclic number.

It is not a de Polignac number, because 10142261 - 2²² = 5947957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10142267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2495 + ... + 5148.

It is an arithmetic number, because the mean of its divisors is an integer number (2537808).

Almost surely, 2^10142261 is an apocalyptic number.

It is an amenable number.

10142261 is a deficient number, since it is larger than the sum of its proper divisors (8971).

10142261 is an equidigital number, since it uses as much as digits as its factorization.

10142261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8970.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 10142261 is about 3184.6916648241. The cubic root of 10142261 is about 216.4603023930.

Adding to 10142261 its reverse (16224101), we get a palindrome (26366362).

The spelling of 10142261 in words is "ten million, one hundred forty-two thousand, two hundred sixty-one".