1341332261 has 16 divisors (see below), whose sum is σ = 1402213680. Its totient is φ = 1282068480.

The previous prime is 1341332257. The next prime is 1341332263. The reversal of 1341332261 is 1622331431.

It can be written as a sum of positive squares in 8 ways, for example, as 219484225 + 1121848036 = 14815^2 + 33494^2 .

It is a cyclic number.

It is not a de Polignac number, because 1341332261 - 2² = 1341332257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1341332261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1341332263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 410711 + ... + 413963.

It is an arithmetic number, because the mean of its divisors is an integer number (87638355).

Almost surely, 2^1341332261 is an apocalyptic number.

It is an amenable number.

1341332261 is a deficient number, since it is larger than the sum of its proper divisors (60881419).

1341332261 is a wasteful number, since it uses less digits than its factorization.

1341332261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3496.

The product of its digits is 2592, while the sum is 26.

The square root of 1341332261 is about 36624.2032131758. The cubic root of 1341332261 is about 1102.8390192883.

Adding to 1341332261 its reverse (1622331431), we get a palindrome (2963663692).

The spelling of 1341332261 in words is "one billion, three hundred forty-one million, three hundred thirty-two thousand, two hundred sixty-one".