158208287 has 4 divisors (see below), whose sum is σ = 159256176. Its totient is φ = 157160400.

The previous prime is 158208277. The next prime is 158208313. The reversal of 158208287 is 782802851.

158208287 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 782802851 = 3221 ⋅243031.

It is a cyclic number.

It is not a de Polignac number, because 158208287 - 2⁸ = 158208031 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 (158208247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 523718 + ... + 524019.

It is an arithmetic number, because the mean of its divisors is an integer number (39814044).

Almost surely, 2^158208287 is an apocalyptic number.

158208287 is a deficient number, since it is larger than the sum of its proper divisors (1047889).

158208287 is a wasteful number, since it uses less digits than its factorization.

158208287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1047888.

The product of its (nonzero) digits is 71680, while the sum is 41.

The square root of 158208287 is about 12578.0875732362. The cubic root of 158208287 is about 540.8494711853.

The spelling of 158208287 in words is "one hundred fifty-eight million, two hundred eight thousand, two hundred eighty-seven".