1187341 has 2 divisors, whose sum is σ = 1187342. Its totient is φ = 1187340.

The previous prime is 1187339. The next prime is 1187353. The reversal of 1187341 is 1437811.

1187341 = 770² + 771².

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 594441 + 592900 = 771^2 + 770^2 .

It is a cyclic number.

It is not a de Polignac number, because 1187341 - 2¹ = 1187339 is a prime.

Together with 1187339, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1187311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 593670 + 593671.

It is an arithmetic number, because the mean of its divisors is an integer number (593671).

2^1187341 is an apocalyptic number.

1187341 is the 771-st centered square number.

It is an amenable number.

1187341 is a deficient number, since it is larger than the sum of its proper divisors (1).

1187341 is an equidigital number, since it uses as much as digits as its factorization.

1187341 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 672, while the sum is 25.

The square root of 1187341 is about 1089.6517792396. The cubic root of 1187341 is about 105.8908631080.

The spelling of 1187341 in words is "one million, one hundred eighty-seven thousand, three hundred forty-one".