158870212 has 6 divisors (see below), whose sum is σ = 278022878. Its totient is φ = 79435104.

The previous prime is 158870209. The next prime is 158870213. The reversal of 158870212 is 212078851.

It can be written as a sum of positive squares in only one way, i.e., 138674176 + 20196036 = 11776^2 + 4494^2 .

It is not an unprimeable number, because it can be changed into a prime (158870213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19858773 + ... + 19858780.

Almost surely, 2^158870212 is an apocalyptic number.

It is an amenable number.

158870212 is a deficient number, since it is larger than the sum of its proper divisors (119152666).

158870212 is a wasteful number, since it uses less digits than its factorization.

158870212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39717557 (or 39717555 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 34.

The square root of 158870212 is about 12604.3727333017. The cubic root of 158870212 is about 541.6027053575.

The spelling of 158870212 in words is "one hundred fifty-eight million, eight hundred seventy thousand, two hundred twelve".