154236842 has 8 divisors (see below), whose sum is σ = 238818432. Its totient is φ = 74630700.

The previous prime is 154236821. The next prime is 154236847. The reversal of 154236842 is 248632451.

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 (154236847) 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, 1243784 + ... + 1243907.

It is an arithmetic number, because the mean of its divisors is an integer number (29852304).

Almost surely, 2^154236842 is an apocalyptic number.

154236842 is a deficient number, since it is larger than the sum of its proper divisors (84581590).

154236842 is a wasteful number, since it uses less digits than its factorization.

154236842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2487724.

The product of its digits is 46080, while the sum is 35.

The square root of 154236842 is about 12419.2126159431. The cubic root of 154236842 is about 536.2854836397.

The spelling of 154236842 in words is "one hundred fifty-four million, two hundred thirty-six thousand, eight hundred forty-two".