1240545341 has 4 divisors (see below), whose sum is σ = 1417766112. Its totient is φ = 1063324572.

The previous prime is 1240545337. The next prime is 1240545353. The reversal of 1240545341 is 1435450421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1240545341 - 2² = 1240545337 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240595341) 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, 88610375 + ... + 88610388.

It is an arithmetic number, because the mean of its divisors is an integer number (354441528).

Almost surely, 2^1240545341 is an apocalyptic number.

It is an amenable number.

1240545341 is a deficient number, since it is larger than the sum of its proper divisors (177220771).

1240545341 is an equidigital number, since it uses as much as digits as its factorization.

1240545341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177220770.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 1240545341 is about 35221.3761940104. The cubic root of 1240545341 is about 1074.4945425442.

Adding to 1240545341 its reverse (1435450421), we get a palindrome (2675995762).

The spelling of 1240545341 in words is "one billion, two hundred forty million, five hundred forty-five thousand, three hundred forty-one".