158640948 has 36 divisors (see below), whose sum is σ = 403062660. Its totient is φ = 52609536.

The previous prime is 158640917. The next prime is 158640949. The reversal of 158640948 is 849046851.

158640948 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 2 ways, for example, as 124277904 + 34363044 = 11148^2 + 5862^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158640949) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4093 + ... + 18276.

It is an arithmetic number, because the mean of its divisors is an integer number (11196185).

Almost surely, 2^158640948 is an apocalyptic number.

158640948 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

158640948 is an abundant number, since it is smaller than the sum of its proper divisors (244421712).

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

158640948 is a wasteful number, since it uses less digits than its factorization.

158640948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22576 (or 22571 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 158640948 is about 12595.2748282838. The cubic root of 158640948 is about 541.3420528024.

The spelling of 158640948 in words is "one hundred fifty-eight million, six hundred forty thousand, nine hundred forty-eight".