222153557 has 2 divisors, whose sum is σ = 222153558. Its totient is φ = 222153556.

The previous prime is 222153473. The next prime is 222153577. The reversal of 222153557 is 755351222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 197093521 + 25060036 = 14039^2 + 5006^2 .

It is a cyclic number.

It is not a de Polignac number, because 222153557 - 2¹² = 222149461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222153577) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111076778 + 111076779.

It is an arithmetic number, because the mean of its divisors is an integer number (111076779).

Almost surely, 2^222153557 is an apocalyptic number.

It is an amenable number.

222153557 is a deficient number, since it is larger than the sum of its proper divisors (1).

222153557 is an equidigital number, since it uses as much as digits as its factorization.

222153557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21000, while the sum is 32.

The square root of 222153557 is about 14904.8165704916. The cubic root of 222153557 is about 605.6444713559.

The spelling of 222153557 in words is "two hundred twenty-two million, one hundred fifty-three thousand, five hundred fifty-seven".