135515622 has 32 divisors (see below), whose sum is σ = 296763264. Its totient is φ = 40913600.

The previous prime is 135515621. The next prime is 135515623. The reversal of 135515622 is 226515531.

It is a happy number.

135515622 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (135515621) and next prime (135515623).

It is a super-3 number, since 3×135515622³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 135515622.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135515621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14893 + ... + 22199.

It is an arithmetic number, because the mean of its divisors is an integer number (9273852).

Almost surely, 2^135515622 is an apocalyptic number.

135515622 is an abundant number, since it is smaller than the sum of its proper divisors (161247642).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135515622 is a wasteful number, since it uses less digits than its factorization.

135515622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7604.

The product of its digits is 9000, while the sum is 30.

The square root of 135515622 is about 11641.1177298402. The cubic root of 135515622 is about 513.6450662724.

Subtracting 135515622 from its reverse (226515531), we obtain a palindrome (90999909).

The spelling of 135515622 in words is "one hundred thirty-five million, five hundred fifteen thousand, six hundred twenty-two".