158307949 has 8 divisors (see below), whose sum is σ = 160515000. Its totient is φ = 156110592.

The previous prime is 158307907. The next prime is 158307953. The reversal of 158307949 is 949703851.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3678724 + 154629225 = 1918^2 + 12435^2 .

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 158307949 - 2²¹ = 156210797 is a prime.

It is a super-2 number, since 2×158307949² = 50122813433173202, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 158307899 and 158307908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158305949) 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 7 ways as a sum of consecutive naturals, for example, 34227 + ... + 38575.

It is an arithmetic number, because the mean of its divisors is an integer number (20064375).

Almost surely, 2^158307949 is an apocalyptic number.

It is an amenable number.

158307949 is a deficient number, since it is larger than the sum of its proper divisors (2207051).

158307949 is an equidigital number, since it uses as much as digits as its factorization.

158307949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4847.

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 158307949 is about 12582.0486805607. The cubic root of 158307949 is about 540.9630152282.

The spelling of 158307949 in words is "one hundred fifty-eight million, three hundred seven thousand, nine hundred forty-nine".