158156236 has 48 divisors (see below), whose sum is σ = 342752256. Its totient is φ = 62302464.

The previous prime is 158156231. The next prime is 158156237. The reversal of 158156236 is 632651851.

158156236 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 158156195 and 158156204.

It is not an unprimeable number, because it can be changed into a prime (158156231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16605 + ... + 24331.

It is an arithmetic number, because the mean of its divisors is an integer number (7140672).

Almost surely, 2^158156236 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 158156236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171376128).

158156236 is an abundant number, since it is smaller than the sum of its proper divisors (184596020).

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

158156236 is a wasteful number, since it uses less digits than its factorization.

158156236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7798 (or 7796 counting only the distinct ones).

The product of its digits is 43200, while the sum is 37.

The square root of 158156236 is about 12576.0182887908. The cubic root of 158156236 is about 540.7901509810.

The spelling of 158156236 in words is "one hundred fifty-eight million, one hundred fifty-six thousand, two hundred thirty-six".