42253157 has 2 divisors, whose sum is σ = 42253158. Its totient is φ = 42253156.

The previous prime is 42253153. The next prime is 42253163. The reversal of 42253157 is 75135224.

It is a happy number.

42253157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26894596 + 15358561 = 5186^2 + 3919^2 .

It is a cyclic number.

It is not a de Polignac number, because 42253157 - 2² = 42253153 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 (42253153) 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, 21126578 + 21126579.

It is an arithmetic number, because the mean of its divisors is an integer number (21126579).

Almost surely, 2^42253157 is an apocalyptic number.

It is an amenable number.

42253157 is a deficient number, since it is larger than the sum of its proper divisors (1).

42253157 is an equidigital number, since it uses as much as digits as its factorization.

42253157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8400, while the sum is 29.

The square root of 42253157 is about 6500.2428416175. The cubic root of 42253157 is about 348.2996631654.

The spelling of 42253157 in words is "forty-two million, two hundred fifty-three thousand, one hundred fifty-seven".