158085389 has 16 divisors (see below), whose sum is σ = 197402496. Its totient is φ = 122990400.

The previous prime is 158085383. The next prime is 158085407. The reversal of 158085389 is 983580851.

It is a cyclic number.

It is not a de Polignac number, because 158085389 - 2⁸ = 158085133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158085383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66359 + ... + 68699.

It is an arithmetic number, because the mean of its divisors is an integer number (12337656).

Almost surely, 2^158085389 is an apocalyptic number.

It is an amenable number.

158085389 is a deficient number, since it is larger than the sum of its proper divisors (39317107).

158085389 is a wasteful number, since it uses less digits than its factorization.

158085389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3236.

The product of its (nonzero) digits is 345600, while the sum is 47.

The square root of 158085389 is about 12573.2012232367. The cubic root of 158085389 is about 540.7093888960.

The spelling of 158085389 in words is "one hundred fifty-eight million, eighty-five thousand, three hundred eighty-nine".