154339442 has 8 divisors (see below), whose sum is σ = 232060332. Its totient is φ = 76986000.

The previous prime is 154339429. The next prime is 154339463. The reversal of 154339442 is 244933451.

It can be written as a sum of positive squares in 2 ways, for example, as 138744841 + 15594601 = 11779^2 + 3949^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90809 + ... + 92492.

Almost surely, 2^154339442 is an apocalyptic number.

154339442 is a deficient number, since it is larger than the sum of its proper divisors (77720890).

154339442 is a wasteful number, since it uses less digits than its factorization.

154339442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183724.

The product of its digits is 51840, while the sum is 35.

The square root of 154339442 is about 12423.3426258797. The cubic root of 154339442 is about 536.4043715652.

The spelling of 154339442 in words is "one hundred fifty-four million, three hundred thirty-nine thousand, four hundred forty-two".