158731847 has 2 divisors, whose sum is σ = 158731848. Its totient is φ = 158731846.

The previous prime is 158731841. The next prime is 158731861. The reversal of 158731847 is 748137851.

158731847 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (748137851) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 158731847 - 2¹⁶ = 158666311 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 158731798 and 158731807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158731841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79365923 + 79365924.

It is an arithmetic number, because the mean of its divisors is an integer number (79365924).

Almost surely, 2^158731847 is an apocalyptic number.

158731847 is a deficient number, since it is larger than the sum of its proper divisors (1).

158731847 is an equidigital number, since it uses as much as digits as its factorization.

158731847 is an evil number, because the sum of its binary digits is even.

The product of its digits is 188160, while the sum is 44.

The square root of 158731847 is about 12598.8827679283. The cubic root of 158731847 is about 541.4454268188.

The spelling of 158731847 in words is "one hundred fifty-eight million, seven hundred thirty-one thousand, eight hundred forty-seven".