1009157 has 2 divisors, whose sum is σ = 1009158. Its totient is φ = 1009156.

The previous prime is 1009153. The next prime is 1009159. The reversal of 1009157 is 7519001.

1009157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 729316 + 279841 = 854^2 + 529^2 .

It is a cyclic number.

It is not a de Polignac number, because 1009157 - 2² = 1009153 is a prime.

Together with 1009159, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1009153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 504578 + 504579.

It is an arithmetic number, because the mean of its divisors is an integer number (504579).

2^1009157 is an apocalyptic number.

It is an amenable number.

1009157 is a deficient number, since it is larger than the sum of its proper divisors (1).

1009157 is an equidigital number, since it uses as much as digits as its factorization.

1009157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 315, while the sum is 23.

The square root of 1009157 is about 1004.5680663848. The cubic root of 1009157 is about 100.3043063703.

The spelling of 1009157 in words is "one million, nine thousand, one hundred fifty-seven".