158452609 has 8 divisors (see below), whose sum is σ = 190619840. Its totient is φ = 128668176.

The previous prime is 158452601. The next prime is 158452621. The reversal of 158452609 is 906254851.

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

It is not a de Polignac number, because 158452609 - 2³ = 158452601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158452601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 595554 + ... + 595819.

It is an arithmetic number, because the mean of its divisors is an integer number (23827480).

Almost surely, 2^158452609 is an apocalyptic number.

158452609 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

158452609 is a deficient number, since it is larger than the sum of its proper divisors (32167231).

158452609 is a wasteful number, since it uses less digits than its factorization.

158452609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1191399.

The product of its (nonzero) digits is 86400, while the sum is 40.

The square root of 158452609 is about 12587.7960342548. The cubic root of 158452609 is about 541.1277403435.

The spelling of 158452609 in words is "one hundred fifty-eight million, four hundred fifty-two thousand, six hundred nine".