2155140341 has 4 divisors (see below), whose sum is σ = 2268568800. Its totient is φ = 2041711884.

The previous prime is 2155140311. The next prime is 2155140353. The reversal of 2155140341 is 1430415512.

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 a de Polignac number, because none of the positive numbers 2^k-2155140341 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 2155140341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2155140311) 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, 56714201 + ... + 56714238.

It is an arithmetic number, because the mean of its divisors is an integer number (567142200).

Almost surely, 2^2155140341 is an apocalyptic number.

It is an amenable number.

2155140341 is a deficient number, since it is larger than the sum of its proper divisors (113428459).

2155140341 is a wasteful number, since it uses less digits than its factorization.

2155140341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113428458.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 2155140341 is about 46423.4891084244. The cubic root of 2155140341 is about 1291.6906585031.

Adding to 2155140341 its reverse (1430415512), we get a palindrome (3585555853).

The spelling of 2155140341 in words is "two billion, one hundred fifty-five million, one hundred forty thousand, three hundred forty-one".