158671842 has 16 divisors (see below), whose sum is σ = 362678592. Its totient is φ = 45334800.

The previous prime is 158671841. The next prime is 158671867. The reversal of 158671842 is 248176851.

158671842 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 3777901 = 158671842 / (1 + 5 + 8 + 6 + 7 + 1 + 8 + 4 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 158671794 and 158671803.

It is not an unprimeable number, because it can be changed into a prime (158671841) 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, 1888909 + ... + 1888992.

It is an arithmetic number, because the mean of its divisors is an integer number (22667412).

Almost surely, 2^158671842 is an apocalyptic number.

158671842 is an abundant number, since it is smaller than the sum of its proper divisors (204006750).

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

158671842 is a wasteful number, since it uses less digits than its factorization.

158671842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3777913.

The product of its digits is 107520, while the sum is 42.

The square root of 158671842 is about 12596.5011808835. The cubic root of 158671842 is about 541.3771911364.

The spelling of 158671842 in words is "one hundred fifty-eight million, six hundred seventy-one thousand, eight hundred forty-two".