158021286 has 16 divisors (see below), whose sum is σ = 316237824. Its totient is φ = 52641224.

The previous prime is 158021263. The next prime is 158021321. The reversal of 158021286 is 682120851.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3715 + ... + 18161.

It is an arithmetic number, because the mean of its divisors is an integer number (19764864).

Almost surely, 2^158021286 is an apocalyptic number.

158021286 is an abundant number, since it is smaller than the sum of its proper divisors (158216538).

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

158021286 is a wasteful number, since it uses less digits than its factorization.

158021286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16275.

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 158021286 is about 12570.6517730784. The cubic root of 158021286 is about 540.6362938423.

The spelling of 158021286 in words is "one hundred fifty-eight million, twenty-one thousand, two hundred eighty-six".