158011290 has 64 divisors (see below), whose sum is σ = 425174400. Its totient is φ = 41755392.

The previous prime is 158011261. The next prime is 158011291. The reversal of 158011290 is 92110851.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (158011291) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27921 + ... + 33099.

It is an arithmetic number, because the mean of its divisors is an integer number (6643350).

Almost surely, 2^158011290 is an apocalyptic number.

158011290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 158011290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212587200).

158011290 is an abundant number, since it is smaller than the sum of its proper divisors (267163110).

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

158011290 is a wasteful number, since it uses less digits than its factorization.

158011290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5308 (or 5302 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 27.

The square root of 158011290 is about 12570.2541740412. The cubic root of 158011290 is about 540.6248938710.

The spelling of 158011290 in words is "one hundred fifty-eight million, eleven thousand, two hundred ninety".