158145834 has 96 divisors (see below), whose sum is σ = 407116800. Its totient is φ = 40491360.

The previous prime is 158145829. The next prime is 158145839. The reversal of 158145834 is 438541851.

158145834 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (158145829) and next prime (158145839).

It is a junction number, because it is equal to n+sod(n) for n = 158145792 and 158145801.

It is not an unprimeable number, because it can be changed into a prime (158145839) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 255177 + ... + 255795.

It is an arithmetic number, because the mean of its divisors is an integer number (4240800).

Almost surely, 2^158145834 is an apocalyptic number.

158145834 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 158145834, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203558400).

158145834 is an abundant number, since it is smaller than the sum of its proper divisors (248970966).

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

158145834 is a wasteful number, since it uses less digits than its factorization.

158145834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728 (or 721 counting only the distinct ones).

The product of its digits is 76800, while the sum is 39.

The square root of 158145834 is about 12575.6047170703. The cubic root of 158145834 is about 540.7782947250.

The spelling of 158145834 in words is "one hundred fifty-eight million, one hundred forty-five thousand, eight hundred thirty-four".