1330157 has 2 divisors, whose sum is σ = 1330158. Its totient is φ = 1330156.

The previous prime is 1330129. The next prime is 1330177. The reversal of 1330157 is 7510331.

It is a happy number.

It is an a-pointer prime, because the next prime (1330177) can be obtained adding 1330157 to its sum of digits (20).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1190281 + 139876 = 1091^2 + 374^2 .

It is a cyclic number.

It is not a de Polignac number, because 1330157 - 2⁶ = 1330093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1330177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665078 + 665079.

It is an arithmetic number, because the mean of its divisors is an integer number (665079).

2^1330157 is an apocalyptic number.

It is an amenable number.

1330157 is a deficient number, since it is larger than the sum of its proper divisors (1).

1330157 is an equidigital number, since it uses as much as digits as its factorization.

1330157 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 20.

The square root of 1330157 is about 1153.3243255910. The cubic root of 1330157 is about 109.9767719549.

Adding to 1330157 its reverse (7510331), we get a palindrome (8840488).

The spelling of 1330157 in words is "one million, three hundred thirty thousand, one hundred fifty-seven".