158145840 has 60 divisors (see below), whose sum is σ = 531108864. Its totient is φ = 42172032.

The previous prime is 158145839. The next prime is 158145851. The reversal of 158145840 is 48541851.

It is a tau number, because it is divible by the number of its divisors (60).

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

It is a junction number, because it is equal to n+sod(n) for n = 158145795 and 158145804.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 109104 + ... + 110543.

Almost surely, 2^158145840 is an apocalyptic number.

158145840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

158145840 is an abundant number, since it is smaller than the sum of its proper divisors (372963024).

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

158145840 is a wasteful number, since it uses less digits than its factorization.

158145840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219666 (or 219657 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 36.

The square root of 158145840 is about 12575.6049556274. The cubic root of 158145840 is about 540.7783015640.

The spelling of 158145840 in words is "one hundred fifty-eight million, one hundred forty-five thousand, eight hundred forty".