158144004 has 36 divisors (see below), whose sum is σ = 401296896. Its totient is φ = 52511088.

The previous prime is 158144003. The next prime is 158144023. The reversal of 158144004 is 400441851.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (158144003) 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 11 ways as a sum of consecutive naturals, for example, 1117 + ... + 17819.

It is an arithmetic number, because the mean of its divisors is an integer number (11147136).

Almost surely, 2^158144004 is an apocalyptic number.

It is an amenable number.

158144004 is an abundant number, since it is smaller than the sum of its proper divisors (243152892).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

158144004 is a wasteful number, since it uses less digits than its factorization.

158144004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16976 (or 16971 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 158144004 is about 12575.5319569392. The cubic root of 158144004 is about 540.7762088273.

Adding to 158144004 its reverse (400441851), we get a palindrome (558585855).

The spelling of 158144004 in words is "one hundred fifty-eight million, one hundred forty-four thousand, four".