154142644 has 12 divisors (see below), whose sum is σ = 270232704. Its totient is φ = 76933304.

The previous prime is 154142617. The next prime is 154142647. The reversal of 154142644 is 446241451.

154142644 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154142647) 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 3 ways as a sum of consecutive naturals, for example, 31972 + ... + 36475.

It is an arithmetic number, because the mean of its divisors is an integer number (22519392).

Almost surely, 2^154142644 is an apocalyptic number.

It is an amenable number.

154142644 is a deficient number, since it is larger than the sum of its proper divisors (116090060).

154142644 is a wasteful number, since it uses less digits than its factorization.

154142644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69014 (or 69012 counting only the distinct ones).

The product of its digits is 15360, while the sum is 31.

The square root of 154142644 is about 12415.4196062799. The cubic root of 154142644 is about 536.1762851132.

The spelling of 154142644 in words is "one hundred fifty-four million, one hundred forty-two thousand, six hundred forty-four".