135224218553 has 2 divisors, whose sum is σ = 135224218554. Its totient is φ = 135224218552.

The previous prime is 135224218543. The next prime is 135224218561. The reversal of 135224218553 is 355812422531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122155842064 + 13068376489 = 349508^2 + 114317^2 .

It is a cyclic number.

It is not a de Polignac number, because 135224218553 - 2¹² = 135224214457 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 135224218553.

It is not a weakly prime, because it can be changed into another prime (135224218543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67612109276 + 67612109277.

It is an arithmetic number, because the mean of its divisors is an integer number (67612109277).

Almost surely, 2^135224218553 is an apocalyptic number.

It is an amenable number.

135224218553 is a deficient number, since it is larger than the sum of its proper divisors (1).

135224218553 is an equidigital number, since it uses as much as digits as its factorization.

135224218553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 288000, while the sum is 41.

The spelling of 135224218553 in words is "one hundred thirty-five billion, two hundred twenty-four million, two hundred eighteen thousand, five hundred fifty-three".