1340230141 has 4 divisors (see below), whose sum is σ = 1358589532. Its totient is φ = 1321870752.

The previous prime is 1340230127. The next prime is 1340230159. The reversal of 1340230141 is 1410320431.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 616082041 + 724148100 = 24821^2 + 26910^2 .

It is a cyclic number.

It is not a de Polignac number, because 1340230141 - 2¹¹ = 1340228093 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 (1340230121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9179586 + ... + 9179731.

It is an arithmetic number, because the mean of its divisors is an integer number (339647383).

Almost surely, 2^1340230141 is an apocalyptic number.

It is an amenable number.

1340230141 is a deficient number, since it is larger than the sum of its proper divisors (18359391).

1340230141 is an equidigital number, since it uses as much as digits as its factorization.

1340230141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18359390.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1340230141 is about 36609.1537869970. The cubic root of 1340230141 is about 1102.5368833632.

Adding to 1340230141 its reverse (1410320431), we get a palindrome (2750550572).

The spelling of 1340230141 in words is "one billion, three hundred forty million, two hundred thirty thousand, one hundred forty-one".