158487401 has 4 divisors (see below), whose sum is σ = 159363204. Its totient is φ = 157611600.

The previous prime is 158487377. The next prime is 158487403. The reversal of 158487401 is 104784851.

It is a happy number.

158487401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 39677401 + 118810000 = 6299^2 + 10900^2 .

It is a cyclic number.

It is not a de Polignac number, because 158487401 - 2¹⁴ = 158471017 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 (158487403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 437630 + ... + 437991.

It is an arithmetic number, because the mean of its divisors is an integer number (39840801).

Almost surely, 2^158487401 is an apocalyptic number.

It is an amenable number.

158487401 is a deficient number, since it is larger than the sum of its proper divisors (875803).

158487401 is an equidigital number, since it uses as much as digits as its factorization.

158487401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875802.

The product of its (nonzero) digits is 35840, while the sum is 38.

The square root of 158487401 is about 12589.1779318588. The cubic root of 158487401 is about 541.1673432226.

The spelling of 158487401 in words is "one hundred fifty-eight million, four hundred eighty-seven thousand, four hundred one".