155802226 has 8 divisors (see below), whose sum is σ = 234635184. Its totient is φ = 77590500.

The previous prime is 155802209. The next prime is 155802277. The reversal of 155802226 is 622208551.

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, 154680 + ... + 155683.

It is an arithmetic number, because the mean of its divisors is an integer number (29329398).

Almost surely, 2^155802226 is an apocalyptic number.

155802226 is a deficient number, since it is larger than the sum of its proper divisors (78832958).

155802226 is a wasteful number, since it uses less digits than its factorization.

155802226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310616.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 155802226 is about 12482.0761894807. The cubic root of 155802226 is about 538.0936736602.

The spelling of 155802226 in words is "one hundred fifty-five million, eight hundred two thousand, two hundred twenty-six".