135621503034 has 16 divisors (see below), whose sum is σ = 271463364480. Its totient is φ = 45170441280.

The previous prime is 135621503033. The next prime is 135621503111. The reversal of 135621503034 is 430305126531.

It is a junction number, because it is equal to n+sod(n) for n = 135621502986 and 135621503004.

It is not an unprimeable number, because it can be changed into a prime (135621503033) 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, 9173599 + ... + 9188370.

It is an arithmetic number, because the mean of its divisors is an integer number (16966460280).

Almost surely, 2^135621503034 is an apocalyptic number.

135621503034 is an abundant number, since it is smaller than the sum of its proper divisors (135841861446).

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

135621503034 is a wasteful number, since it uses less digits than its factorization.

135621503034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18363205.

The product of its (nonzero) digits is 32400, while the sum is 33.

Adding to 135621503034 its reverse (430305126531), we get a palindrome (565926629565).

The spelling of 135621503034 in words is "one hundred thirty-five billion, six hundred twenty-one million, five hundred three thousand, thirty-four".