135531022 has 16 divisors (see below), whose sum is σ = 222116400. Its totient is φ = 61511040.

The previous prime is 135530999. The next prime is 135531029. The reversal of 135531022 is 220135531.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 135530984 and 135531002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135531029) 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, 11254 + ... + 19942.

It is an arithmetic number, because the mean of its divisors is an integer number (13882275).

Almost surely, 2^135531022 is an apocalyptic number.

135531022 is a deficient number, since it is larger than the sum of its proper divisors (86585378).

135531022 is a wasteful number, since it uses less digits than its factorization.

135531022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9411.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 135531022 is about 11641.7791595615. The cubic root of 135531022 is about 513.6645224165.

Adding to 135531022 its reverse (220135531), we get a palindrome (355666553).

The spelling of 135531022 in words is "one hundred thirty-five million, five hundred thirty-one thousand, twenty-two".