158362009 has 8 divisors (see below), whose sum is σ = 170755592. Its totient is φ = 145998720.

The previous prime is 158362007. The next prime is 158362079. The reversal of 158362009 is 900263851.

It can be written as a sum of positive squares in 4 ways, for example, as 31304025 + 127057984 = 5595^2 + 11272^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 158362009 - 2¹ = 158362007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158362003) 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, 3949 + ... + 18229.

It is an arithmetic number, because the mean of its divisors is an integer number (21344449).

Almost surely, 2^158362009 is an apocalyptic number.

It is an amenable number.

158362009 is a deficient number, since it is larger than the sum of its proper divisors (12393583).

158362009 is a wasteful number, since it uses less digits than its factorization.

158362009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15147.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 158362009 is about 12584.1967959819. The cubic root of 158362009 is about 541.0245853779.

The spelling of 158362009 in words is "one hundred fifty-eight million, three hundred sixty-two thousand, nine".