305442443136154 has 16 divisors (see below), whose sum is σ = 470563209721800. Its totient is φ = 148588333637184.

The previous prime is 305442443136151. The next prime is 305442443136197. The reversal of 305442443136154 is 451631344244503.

It can be written as a sum of positive squares in 4 ways, for example, as 214842980495529 + 90599462640625 = 14657523^2 + 9518375^2 .

It is a junction number, because it is equal to n+sod(n) for n = 305442443136098 and 305442443136107.

It is not an unprimeable number, because it can be changed into a prime (305442443136151) 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, 71341269 + ... + 75501400.

Almost surely, 2^{305442443136154} is an apocalyptic number.

305442443136154 is a deficient number, since it is larger than the sum of its proper divisors (165120766585646).

305442443136154 is a wasteful number, since it uses less digits than its factorization.

305442443136154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146870817.

The product of its (nonzero) digits is 8294400, while the sum is 49.

The spelling of 305442443136154 in words is "three hundred five trillion, four hundred forty-two billion, four hundred forty-three million, one hundred thirty-six thousand, one hundred fifty-four".