158632238 has 16 divisors (see below), whose sum is σ = 247138560. Its totient is φ = 76310136.

The previous prime is 158632217. The next prime is 158632241. The reversal of 158632238 is 832236851.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8756 + ... + 19847.

It is an arithmetic number, because the mean of its divisors is an integer number (15446160).

Almost surely, 2^158632238 is an apocalyptic number.

158632238 is a deficient number, since it is larger than the sum of its proper divisors (88506322).

158632238 is a wasteful number, since it uses less digits than its factorization.

158632238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28711.

The product of its digits is 69120, while the sum is 38.

The square root of 158632238 is about 12594.9290589507. The cubic root of 158632238 is about 541.3321453654.

The spelling of 158632238 in words is "one hundred fifty-eight million, six hundred thirty-two thousand, two hundred thirty-eight".