158123380 has 24 divisors (see below), whose sum is σ = 338326632. Its totient is φ = 62055552.

The previous prime is 158123359. The next prime is 158123387. The reversal of 158123380 is 83321851.

158123380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 62631396 + 95491984 = 7914^2 + 9772^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158123387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73527 + ... + 75646.

It is an arithmetic number, because the mean of its divisors is an integer number (14096943).

Almost surely, 2^158123380 is an apocalyptic number.

158123380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

158123380 is an abundant number, since it is smaller than the sum of its proper divisors (180203252).

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

158123380 is a wasteful number, since it uses less digits than its factorization.

158123380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149235 (or 149233 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 158123380 is about 12574.7119251297. The cubic root of 158123380 is about 540.7526997615.

The spelling of 158123380 in words is "one hundred fifty-eight million, one hundred twenty-three thousand, three hundred eighty".