158913720 has 192 divisors, whose sum is σ = 621504000. Its totient is φ = 34401024.

The previous prime is 158913697. The next prime is 158913743. The reversal of 158913720 is 27319851.

158913720 is a `hidden beast` number, since 1 + 589 + 1 + 3 + 72 + 0 = 666.

158913720 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 (158913697) and next prime (158913743).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 46221 + ... + 49539.

It is an arithmetic number, because the mean of its divisors is an integer number (3237000).

Almost surely, 2^158913720 is an apocalyptic number.

158913720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 158913720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (310752000).

158913720 is an abundant number, since it is smaller than the sum of its proper divisors (462590280).

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

158913720 is a wasteful number, since it uses less digits than its factorization.

158913720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3362 (or 3355 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 158913720 is about 12606.0985241271. The cubic root of 158913720 is about 541.6521417275.

The spelling of 158913720 in words is "one hundred fifty-eight million, nine hundred thirteen thousand, seven hundred twenty".