222906157 has 8 divisors (see below), whose sum is σ = 237853760. Its totient is φ = 208280160.

The previous prime is 222906143. The next prime is 222906161. The reversal of 222906157 is 751609222.

222906157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 222906157 - 2⁷ = 222906029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222906137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78969 + ... + 81742.

It is an arithmetic number, because the mean of its divisors is an integer number (29731720).

Almost surely, 2^222906157 is an apocalyptic number.

It is an amenable number.

222906157 is a deficient number, since it is larger than the sum of its proper divisors (14947603).

222906157 is a wasteful number, since it uses less digits than its factorization.

222906157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160803.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 222906157 is about 14930.0420963908. The cubic root of 222906157 is about 606.3276238581.

The spelling of 222906157 in words is "two hundred twenty-two million, nine hundred six thousand, one hundred fifty-seven".