305155105142 has 16 divisors (see below), whose sum is σ = 460097787600. Its totient is φ = 151789316448.

The previous prime is 305155105111. The next prime is 305155105147. The reversal of 305155105142 is 241501551503.

It is a junction number, because it is equal to n+sod(n) for n = 305155105099 and 305155105108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305155105147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5392109 + ... + 5448407.

It is an arithmetic number, because the mean of its divisors is an integer number (28756111725).

Almost surely, 2^305155105142 is an apocalyptic number.

305155105142 is a deficient number, since it is larger than the sum of its proper divisors (154942682458).

305155105142 is a wasteful number, since it uses less digits than its factorization.

305155105142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70255.

The product of its (nonzero) digits is 15000, while the sum is 32.

Adding to 305155105142 its reverse (241501551503), we get a palindrome (546656656645).

The spelling of 305155105142 in words is "three hundred five billion, one hundred fifty-five million, one hundred five thousand, one hundred forty-two".