158036738 has 4 divisors (see below), whose sum is σ = 237055110. Its totient is φ = 79018368.

The previous prime is 158036717. The next prime is 158036741. The reversal of 158036738 is 837630851.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 152942689 + 5094049 = 12367^2 + 2257^2 .

It is a super-2 number, since 2×158036738² = 49951221115361288, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 158036695 and 158036704.

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 as a sum of consecutive naturals, namely, 39509183 + ... + 39509186.

Almost surely, 2^158036738 is an apocalyptic number.

158036738 is a deficient number, since it is larger than the sum of its proper divisors (79018372).

158036738 is an equidigital number, since it uses as much as digits as its factorization.

158036738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79018371.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 158036738 is about 12571.2663642133. The cubic root of 158036738 is about 540.6539151808.

The spelling of 158036738 in words is "one hundred fifty-eight million, thirty-six thousand, seven hundred thirty-eight".