1243641341 has 8 divisors (see below), whose sum is σ = 1322705664. Its totient is φ = 1165233600.

The previous prime is 1243641323. The next prime is 1243641367. The reversal of 1243641341 is 1431463421.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1243641341 - 2²⁶ = 1176532477 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 (1243641541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160235 + ... + 167816.

It is an arithmetic number, because the mean of its divisors is an integer number (165338208).

Almost surely, 2^1243641341 is an apocalyptic number.

It is an amenable number.

1243641341 is a deficient number, since it is larger than the sum of its proper divisors (79064323).

1243641341 is a wasteful number, since it uses less digits than its factorization.

1243641341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328291.

The product of its digits is 6912, while the sum is 29.

The square root of 1243641341 is about 35265.2993890595. The cubic root of 1243641341 is about 1075.3876636103.

The spelling of 1243641341 in words is "one billion, two hundred forty-three million, six hundred forty-one thousand, three hundred forty-one".