158919401 has 8 divisors (see below), whose sum is σ = 167399520. Its totient is φ = 150450912.

The previous prime is 158919373. The next prime is 158919413. The reversal of 158919401 is 104919851.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-158919401 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (158919461) 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, 50006 + ... + 53088.

It is an arithmetic number, because the mean of its divisors is an integer number (20924940).

Almost surely, 2^158919401 is an apocalyptic number.

It is an amenable number.

158919401 is a deficient number, since it is larger than the sum of its proper divisors (8480119).

158919401 is a wasteful number, since it uses less digits than its factorization.

158919401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5815.

The product of its (nonzero) digits is 12960, while the sum is 38.

The square root of 158919401 is about 12606.3238495606. The cubic root of 158919401 is about 541.6585961506.

The spelling of 158919401 in words is "one hundred fifty-eight million, nine hundred nineteen thousand, four hundred one".