154883842 has 4 divisors (see below), whose sum is σ = 232325766. Its totient is φ = 77441920.

The previous prime is 154883831. The next prime is 154883857. The reversal of 154883842 is 248388451.

It is a happy number.

154883842 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 248388451 = 29 ⋅8565119.

It can be written as a sum of positive squares in only one way, i.e., 135001161 + 19882681 = 11619^2 + 4459^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38720959 + ... + 38720962.

Almost surely, 2^154883842 is an apocalyptic number.

154883842 is a deficient number, since it is larger than the sum of its proper divisors (77441924).

154883842 is an equidigital number, since it uses as much as digits as its factorization.

154883842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77441923.

The product of its digits is 245760, while the sum is 43.

The square root of 154883842 is about 12445.2337061222. The cubic root of 154883842 is about 537.0343161052.

The spelling of 154883842 in words is "one hundred fifty-four million, eight hundred eighty-three thousand, eight hundred forty-two".