305540152143 has 32 divisors (see below), whose sum is σ = 435778113024. Its totient is φ = 189987887232.

The previous prime is 305540152139. The next prime is 305540152157. The reversal of 305540152143 is 341251045503.

It is not a de Polignac number, because 305540152143 - 2² = 305540152139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305544152143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 339805 + ... + 852377.

It is an arithmetic number, because the mean of its divisors is an integer number (13618066032).

Almost surely, 2^305540152143 is an apocalyptic number.

305540152143 is a deficient number, since it is larger than the sum of its proper divisors (130237960881).

305540152143 is a wasteful number, since it uses less digits than its factorization.

305540152143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512815.

The product of its (nonzero) digits is 36000, while the sum is 33.

Adding to 305540152143 its reverse (341251045503), we get a palindrome (646791197646).

The spelling of 305540152143 in words is "three hundred five billion, five hundred forty million, one hundred fifty-two thousand, one hundred forty-three".