154310021442 has 12 divisors (see below), whose sum is σ = 334338379830. Its totient is φ = 51436673808.

The previous prime is 154310021423. The next prime is 154310021471. The reversal of 154310021442 is 244120013451.

154310021442 is a `hidden beast` number, since 1 + 543 + 100 + 2 + 14 + 4 + 2 = 666.

154310021442 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 123354785961 + 30955235481 = 351219^2 + 175941^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4286389467 + ... + 4286389502.

Almost surely, 2^154310021442 is an apocalyptic number.

154310021442 is an abundant number, since it is smaller than the sum of its proper divisors (180028358388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

154310021442 is a wasteful number, since it uses less digits than its factorization.

154310021442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8572778977 (or 8572778974 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 154310021442 its reverse (244120013451), we get a palindrome (398430034893).

The spelling of 154310021442 in words is "one hundred fifty-four billion, three hundred ten million, twenty-one thousand, four hundred forty-two".