158037986 has 16 divisors (see below), whose sum is σ = 243500928. Its totient is φ = 76885200.

The previous prime is 158037983. The next prime is 158038003. The reversal of 158037986 is 689730851.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 158037986.

It is not an unprimeable number, because it can be changed into a prime (158037983) 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, 19916 + ... + 26696.

It is an arithmetic number, because the mean of its divisors is an integer number (15218808).

Almost surely, 2^158037986 is an apocalyptic number.

158037986 is a deficient number, since it is larger than the sum of its proper divisors (85462942).

158037986 is a wasteful number, since it uses less digits than its factorization.

158037986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7097.

The product of its (nonzero) digits is 362880, while the sum is 47.

The square root of 158037986 is about 12571.3160011194. The cubic root of 158037986 is about 540.6553383400.

The spelling of 158037986 in words is "one hundred fifty-eight million, thirty-seven thousand, nine hundred eighty-six".