158206436 has 6 divisors (see below), whose sum is σ = 276861270. Its totient is φ = 79103216.

The previous prime is 158206429. The next prime is 158206457. The reversal of 158206436 is 634602851.

It can be written as a sum of positive squares in only one way, i.e., 94206436 + 64000000 = 9706^2 + 8000^2 .

It is a junction number, because it is equal to n+sod(n) for n = 158206396 and 158206405.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19775801 + ... + 19775808.

It is an arithmetic number, because the mean of its divisors is an integer number (46143545).

Almost surely, 2^158206436 is an apocalyptic number.

It is an amenable number.

158206436 is a deficient number, since it is larger than the sum of its proper divisors (118654834).

158206436 is a wasteful number, since it uses less digits than its factorization.

158206436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39551613 (or 39551611 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 158206436 is about 12578.0139926779. The cubic root of 158206436 is about 540.8473619063.

The spelling of 158206436 in words is "one hundred fifty-eight million, two hundred six thousand, four hundred thirty-six".