135224220615 has 16 divisors (see below), whose sum is σ = 236027730816. Its totient is φ = 65563258400.

The previous prime is 135224220613. The next prime is 135224220697. The reversal of 135224220615 is 516022422531.

It is a happy number.

It is not a de Polignac number, because 135224220615 - 2¹ = 135224220613 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135224220613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 409770201 + ... + 409770530.

It is an arithmetic number, because the mean of its divisors is an integer number (14751733176).

Almost surely, 2^135224220615 is an apocalyptic number.

135224220615 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

135224220615 is a deficient number, since it is larger than the sum of its proper divisors (100803510201).

135224220615 is a wasteful number, since it uses less digits than its factorization.

135224220615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819540750.

The product of its (nonzero) digits is 28800, while the sum is 33.

The spelling of 135224220615 in words is "one hundred thirty-five billion, two hundred twenty-four million, two hundred twenty thousand, six hundred fifteen".