154401329 has 8 divisors (see below), whose sum is σ = 155956008. Its totient is φ = 152853120.

The previous prime is 154401301. The next prime is 154401341. The reversal of 154401329 is 923104451.

It can be written as a sum of positive squares in 4 ways, for example, as 9150625 + 145250704 = 3025^2 + 12052^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 154401329 - 2¹⁶ = 154335793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (154401389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56339 + ... + 59015.

It is an arithmetic number, because the mean of its divisors is an integer number (19494501).

Almost surely, 2^154401329 is an apocalyptic number.

It is an amenable number.

154401329 is a deficient number, since it is larger than the sum of its proper divisors (1554679).

154401329 is a wasteful number, since it uses less digits than its factorization.

154401329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3235.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 154401329 is about 12425.8331310218. The cubic root of 154401329 is about 536.4760577586.

The spelling of 154401329 in words is "one hundred fifty-four million, four hundred one thousand, three hundred twenty-nine".