156135206 has 4 divisors (see below), whose sum is σ = 234202812. Its totient is φ = 78067602.

The previous prime is 156135167. The next prime is 156135209. The reversal of 156135206 is 602531651.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156135209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39033800 + ... + 39033803.

It is an arithmetic number, because the mean of its divisors is an integer number (58550703).

Almost surely, 2^156135206 is an apocalyptic number.

156135206 is a deficient number, since it is larger than the sum of its proper divisors (78067606).

156135206 is an equidigital number, since it uses as much as digits as its factorization.

156135206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78067605.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 156135206 is about 12495.4073963197. The cubic root of 156135206 is about 538.4767382324.

Adding to 156135206 its reverse (602531651), we get a palindrome (758666857).

The spelling of 156135206 in words is "one hundred fifty-six million, one hundred thirty-five thousand, two hundred six".