156409226 has 8 divisors (see below), whose sum is σ = 234848484. Its totient is φ = 78126400.

The previous prime is 156409207. The next prime is 156409259. The reversal of 156409226 is 622904651.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 97042201 + 59367025 = 9851^2 + 7705^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 in 3 ways as a sum of consecutive naturals, for example, 36575 + ... + 40626.

Almost surely, 2^156409226 is an apocalyptic number.

156409226 is a deficient number, since it is larger than the sum of its proper divisors (78439258).

156409226 is a wasteful number, since it uses less digits than its factorization.

156409226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78216.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 156409226 is about 12506.3674182394. The cubic root of 156409226 is about 538.7915661392.

The spelling of 156409226 in words is "one hundred fifty-six million, four hundred nine thousand, two hundred twenty-six".