158530417 has 4 divisors (see below), whose sum is σ = 159778816. Its totient is φ = 157282020.

The previous prime is 158530409. The next prime is 158530429. The reversal of 158530417 is 714035851.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 158530417 - 2³ = 158530409 is a prime.

It is a super-2 number, since 2×158530417² = 50263786228387778, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158537417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 624009 + ... + 624262.

It is an arithmetic number, because the mean of its divisors is an integer number (39944704).

Almost surely, 2^158530417 is an apocalyptic number.

It is an amenable number.

158530417 is a deficient number, since it is larger than the sum of its proper divisors (1248399).

158530417 is a wasteful number, since it uses less digits than its factorization.

158530417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1248398.

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 158530417 is about 12590.8862674555. The cubic root of 158530417 is about 541.2162992669.

The spelling of 158530417 in words is "one hundred fifty-eight million, five hundred thirty thousand, four hundred seventeen".