154404142 has 16 divisors (see below), whose sum is σ = 239667120. Its totient is φ = 74555712.

The previous prime is 154404137. The next prime is 154404143. The reversal of 154404142 is 241404451.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154404143) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2433 + ... + 17740.

It is an arithmetic number, because the mean of its divisors is an integer number (14979195).

Almost surely, 2^154404142 is an apocalyptic number.

154404142 is a deficient number, since it is larger than the sum of its proper divisors (85262978).

154404142 is a wasteful number, since it uses less digits than its factorization.

154404142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20307.

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 154404142 is about 12425.9463221116. The cubic root of 154404142 is about 536.4793157142.

Adding to 154404142 its reverse (241404451), we get a palindrome (395808593).

The spelling of 154404142 in words is "one hundred fifty-four million, four hundred four thousand, one hundred forty-two".