154420054442 has 8 divisors (see below), whose sum is σ = 231660308100. Its totient is φ = 77199951744.

The previous prime is 154420054409. The next prime is 154420054447. The reversal of 154420054442 is 244450024451.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 154039765441 + 380289001 = 392479^2 + 19501^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (154420054447) 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, 5018567 + ... + 5049242.

Almost surely, 2^154420054442 is an apocalyptic number.

154420054442 is a deficient number, since it is larger than the sum of its proper divisors (77240253658).

154420054442 is a wasteful number, since it uses less digits than its factorization.

154420054442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10075480.

The product of its (nonzero) digits is 102400, while the sum is 35.

Adding to 154420054442 its reverse (244450024451), we get a palindrome (398870078893).

The spelling of 154420054442 in words is "one hundred fifty-four billion, four hundred twenty million, fifty-four thousand, four hundred forty-two".