158340012 has 12 divisors (see below), whose sum is σ = 369460056. Its totient is φ = 52780000.

The previous prime is 158340001. The next prime is 158340019. The reversal of 158340012 is 210043851.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (158340019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6597489 + ... + 6597512.

It is an arithmetic number, because the mean of its divisors is an integer number (30788338).

Almost surely, 2^158340012 is an apocalyptic number.

158340012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

158340012 is an abundant number, since it is smaller than the sum of its proper divisors (211120044).

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

158340012 is a wasteful number, since it uses less digits than its factorization.

158340012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13195008 (or 13195006 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 158340012 is about 12583.3227726225. The cubic root of 158340012 is about 540.9995341910. Note that the first 3 decimals are identical.

Adding to 158340012 its reverse (210043851), we get a palindrome (368383863).

The spelling of 158340012 in words is "one hundred fifty-eight million, three hundred forty thousand, twelve".