158118487 has 2 divisors, whose sum is σ = 158118488. Its totient is φ = 158118486.

The previous prime is 158118431. The next prime is 158118497. The reversal of 158118487 is 784811851.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-158118487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158118497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79059243 + 79059244.

It is an arithmetic number, because the mean of its divisors is an integer number (79059244).

Almost surely, 2^158118487 is an apocalyptic number.

158118487 is a deficient number, since it is larger than the sum of its proper divisors (1).

158118487 is an equidigital number, since it uses as much as digits as its factorization.

158118487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 71680, while the sum is 43.

The square root of 158118487 is about 12574.5173664837. The cubic root of 158118487 is about 540.7471219857.

The spelling of 158118487 in words is "one hundred fifty-eight million, one hundred eighteen thousand, four hundred eighty-seven".