158381288 has 16 divisors (see below), whose sum is σ = 319808580. Its totient is φ = 73099008.

The previous prime is 158381287. The next prime is 158381291. The reversal of 158381288 is 882183851.

It can be written as a sum of positive squares in 2 ways, for example, as 149866564 + 8514724 = 12242^2 + 2918^2 .

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (158381287) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 761345 + ... + 761552.

Almost surely, 2^158381288 is an apocalyptic number.

It is an amenable number.

158381288 is an abundant number, since it is smaller than the sum of its proper divisors (161427292).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

158381288 is a wasteful number, since it uses less digits than its factorization.

158381288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1522916 (or 1522912 counting only the distinct ones).

The product of its digits is 122880, while the sum is 44.

The square root of 158381288 is about 12584.9627730876. The cubic root of 158381288 is about 541.0465392750.

The spelling of 158381288 in words is "one hundred fifty-eight million, three hundred eighty-one thousand, two hundred eighty-eight".