156904222 has 16 divisors (see below), whose sum is σ = 237248352. Its totient is φ = 77824480.

The previous prime is 156904219. The next prime is 156904259. The reversal of 156904222 is 222409651.

156904222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166272 + ... + 167212.

It is an arithmetic number, because the mean of its divisors is an integer number (14828022).

Almost surely, 2^156904222 is an apocalyptic number.

156904222 is a deficient number, since it is larger than the sum of its proper divisors (80344130).

156904222 is a wasteful number, since it uses less digits than its factorization.

156904222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1523.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 156904222 is about 12526.1415447854. The cubic root of 156904222 is about 539.3593476882.

The spelling of 156904222 in words is "one hundred fifty-six million, nine hundred four thousand, two hundred twenty-two".