10253981 has 4 divisors (see below), whose sum is σ = 10287264. Its totient is φ = 10220700.

The previous prime is 10253927. The next prime is 10253987. The reversal of 10253981 is 18935201.

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 an emirpimes, since its reverse is a distinct semiprime: 18935201 = 1103 ⋅17167.

It is a cyclic number.

It is not a de Polignac number, because 10253981 - 2¹⁸ = 9991837 is a prime.

It is a super-2 number, since 2×10253981² = 210288252696722, 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 (10253987) 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, 16175 + ... + 16796.

It is an arithmetic number, because the mean of its divisors is an integer number (2571816).

Almost surely, 2^10253981 is an apocalyptic number.

It is an amenable number.

10253981 is a deficient number, since it is larger than the sum of its proper divisors (33283).

10253981 is an equidigital number, since it uses as much as digits as its factorization.

10253981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33282.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 10253981 is about 3202.1837861060. The cubic root of 10253981 is about 217.2521932188.

The spelling of 10253981 in words is "ten million, two hundred fifty-three thousand, nine hundred eighty-one".