10157281 has 2 divisors, whose sum is σ = 10157282. Its totient is φ = 10157280.

The previous prime is 10157269. The next prime is 10157309. The reversal of 10157281 is 18275101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9891025 + 266256 = 3145^2 + 516^2 .

It is a cyclic number.

It is not a de Polignac number, because 10157281 - 2¹³ = 10149089 is a prime.

It is a super-2 number, since 2×10157281² = 206340714625922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10157201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5078640 + 5078641.

It is an arithmetic number, because the mean of its divisors is an integer number (5078641).

Almost surely, 2^10157281 is an apocalyptic number.

It is an amenable number.

10157281 is a deficient number, since it is larger than the sum of its proper divisors (1).

10157281 is an equidigital number, since it uses as much as digits as its factorization.

10157281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 560, while the sum is 25.

The square root of 10157281 is about 3187.0489484788. The cubic root of 10157281 is about 216.5671040259.

The spelling of 10157281 in words is "ten million, one hundred fifty-seven thousand, two hundred eighty-one".