154849664 has 16 divisors (see below), whose sum is σ = 308489820. Its totient is φ = 77424768.

The previous prime is 154849633. The next prime is 154849687. The reversal of 154849664 is 466948451.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (16).

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 as a sum of consecutive naturals, namely, 604754 + ... + 605009.

Almost surely, 2^154849664 is an apocalyptic number.

It is an amenable number.

154849664 is a deficient number, since it is larger than the sum of its proper divisors (153640156).

154849664 is an equidigital number, since it uses as much as digits as its factorization.

154849664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1209777 (or 1209765 counting only the distinct ones).

The product of its digits is 829440, while the sum is 47.

The square root of 154849664 is about 12443.8604942357. The cubic root of 154849664 is about 536.9948109964.

The spelling of 154849664 in words is "one hundred fifty-four million, eight hundred forty-nine thousand, six hundred sixty-four".