154664 has 8 divisors (see below), whose sum is σ = 290010. Its totient is φ = 77328.

The previous prime is 154643. The next prime is 154667. The reversal of 154664 is 466451.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 96100 + 58564 = 310^2 + 242^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (154667) by changing a digit.

154664 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9659 + ... + 9674.

2¹⁵⁴⁶⁶⁴ is an apocalyptic number.

It is an amenable number.

154664 is a deficient number, since it is larger than the sum of its proper divisors (135346).

154664 is a wasteful number, since it uses less digits than its factorization.

154664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19339 (or 19335 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 154664 is about 393.2734417679. The cubic root of 154664 is about 53.6780107101.

It can be divided in two parts, 154 and 664, that added together give a palindrome (818).

The spelling of 154664 in words is "one hundred fifty-four thousand, six hundred sixty-four".