1341157 has 4 divisors (see below), whose sum is σ = 1348300. Its totient is φ = 1334016.

The previous prime is 1341143. The next prime is 1341167. The reversal of 1341157 is 7511431.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 772641 + 568516 = 879^2 + 754^2 .

It is not a de Polignac number, because 1341157 - 2¹¹ = 1339109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1341167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3282 + ... + 3667.

It is an arithmetic number, because the mean of its divisors is an integer number (337075).

2^1341157 is an apocalyptic number.

It is an amenable number.

1341157 is a deficient number, since it is larger than the sum of its proper divisors (7143).

1341157 is an equidigital number, since it uses as much as digits as its factorization.

1341157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7142.

The product of its digits is 420, while the sum is 22.

The square root of 1341157 is about 1158.0833303351. The cubic root of 1341157 is about 110.2790984188.

Adding to 1341157 its reverse (7511431), we get a palindrome (8852588).

The spelling of 1341157 in words is "one million, three hundred forty-one thousand, one hundred fifty-seven".