10042157 has 2 divisors, whose sum is σ = 10042158. Its totient is φ = 10042156.

The previous prime is 10042147. The next prime is 10042163. The reversal of 10042157 is 75124001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9156676 + 885481 = 3026^2 + 941^2 .

It is a cyclic number.

It is not a de Polignac number, because 10042157 - 2⁴ = 10042141 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10042147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5021078 + 5021079.

It is an arithmetic number, because the mean of its divisors is an integer number (5021079).

Almost surely, 2^10042157 is an apocalyptic number.

It is an amenable number.

10042157 is a deficient number, since it is larger than the sum of its proper divisors (1).

10042157 is an equidigital number, since it uses as much as digits as its factorization.

10042157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 10042157 is about 3168.9362568534. The cubic root of 10042157 is about 215.7457929088.

Adding to 10042157 its reverse (75124001), we get a palindrome (85166158).

The spelling of 10042157 in words is "ten million, forty-two thousand, one hundred fifty-seven".