1340253541 has 8 divisors (see below), whose sum is σ = 1496097504. Its totient is φ = 1190076720.

The previous prime is 1340253511. The next prime is 1340253569. The reversal of 1340253541 is 1453520431.

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 1340253541 - 2²⁵ = 1306699109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340253511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1416286 + ... + 1417231.

It is an arithmetic number, because the mean of its divisors is an integer number (187012188).

Almost surely, 2^1340253541 is an apocalyptic number.

1340253541 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1340253541 is a deficient number, since it is larger than the sum of its proper divisors (155843963).

1340253541 is a wasteful number, since it uses less digits than its factorization.

1340253541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2833571.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 1340253541 is about 36609.4733778021. The cubic root of 1340253541 is about 1102.5432999758.

Adding to 1340253541 its reverse (1453520431), we get a palindrome (2793773972).

The spelling of 1340253541 in words is "one billion, three hundred forty million, two hundred fifty-three thousand, five hundred forty-one".