154143644 has 12 divisors (see below), whose sum is σ = 275491104. Its totient is φ = 75431904.

The previous prime is 154143611. The next prime is 154143653. The reversal of 154143644 is 446341451.

It is a self number, because there is not a number n which added to its sum of digits gives 154143644.

It is a congruent number.

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, 409769 + ... + 410144.

It is an arithmetic number, because the mean of its divisors is an integer number (22957592).

Almost surely, 2^154143644 is an apocalyptic number.

It is an amenable number.

154143644 is a deficient number, since it is larger than the sum of its proper divisors (121347460).

154143644 is a wasteful number, since it uses less digits than its factorization.

154143644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819964 (or 819962 counting only the distinct ones).

The product of its digits is 23040, while the sum is 32.

The square root of 154143644 is about 12415.4598787157. The cubic root of 154143644 is about 536.1774445914.

The spelling of 154143644 in words is "one hundred fifty-four million, one hundred forty-three thousand, six hundred forty-four".