222945251 has 8 divisors (see below), whose sum is σ = 225420000. Its totient is φ = 220476672.

The previous prime is 222945227. The next prime is 222945253. The reversal of 222945251 is 152549222.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222945251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222945253) 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, 127781 + ... + 129513.

It is an arithmetic number, because the mean of its divisors is an integer number (28177500).

Almost surely, 2^222945251 is an apocalyptic number.

222945251 is a deficient number, since it is larger than the sum of its proper divisors (2474749).

222945251 is a wasteful number, since it uses less digits than its factorization.

222945251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3085.

The product of its digits is 14400, while the sum is 32.

The square root of 222945251 is about 14931.3512784342. The cubic root of 222945251 is about 606.3630683501.

The spelling of 222945251 in words is "two hundred twenty-two million, nine hundred forty-five thousand, two hundred fifty-one".