154152921842 has 8 divisors (see below), whose sum is σ = 236869123932. Its totient is φ = 75196547200.

The previous prime is 154152921731. The next prime is 154152921851. The reversal of 154152921842 is 248129251451.

It can be written as a sum of positive squares in 2 ways, for example, as 153992671561 + 160250281 = 392419^2 + 12659^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 154152921793 and 154152921802.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 939956759 + ... + 939956922.

Almost surely, 2^154152921842 is an apocalyptic number.

154152921842 is a deficient number, since it is larger than the sum of its proper divisors (82716202090).

154152921842 is a wasteful number, since it uses less digits than its factorization.

154152921842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1879913724.

The product of its digits is 230400, while the sum is 44.

The spelling of 154152921842 in words is "one hundred fifty-four billion, one hundred fifty-two million, nine hundred twenty-one thousand, eight hundred forty-two".