135215610 has 64 divisors (see below), whose sum is σ = 334540800. Its totient is φ = 34961472.

The previous prime is 135215599. The next prime is 135215617. The reversal of 135215610 is 16512531.

It is a super-2 number, since 2×135215610² = 36566522375344200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (135215617) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 139347 + ... + 140313.

It is an arithmetic number, because the mean of its divisors is an integer number (5227200).

Almost surely, 2^135215610 is an apocalyptic number.

135215610 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 135215610, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167270400).

135215610 is an abundant number, since it is smaller than the sum of its proper divisors (199325190).

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

135215610 is a wasteful number, since it uses less digits than its factorization.

135215610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1115.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 135215610 is about 11628.2247140309. The cubic root of 135215610 is about 513.2657408988.

The spelling of 135215610 in words is "one hundred thirty-five million, two hundred fifteen thousand, six hundred ten".