135203145 has 128 divisors (see below), whose sum is σ = 291409920. Its totient is φ = 51840000.

The previous prime is 135203141. The next prime is 135203149. The reversal of 135203145 is 541302531.

It is an interprime number because it is at equal distance from previous prime (135203141) and next prime (135203149).

It is not a de Polignac number, because 135203145 - 2² = 135203141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135203141) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1338595 + ... + 1338695.

It is an arithmetic number, because the mean of its divisors is an integer number (2276640).

Almost surely, 2^135203145 is an apocalyptic number.

135203145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

135203145 is an abundant number, since it is smaller than the sum of its proper divisors (156206775).

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

135203145 is a wasteful number, since it uses less digits than its factorization.

135203145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 135203145 is about 11627.6887213238. The cubic root of 135203145 is about 513.2499684248.

Adding to 135203145 its reverse (541302531), we get a palindrome (676505676).

The spelling of 135203145 in words is "one hundred thirty-five million, two hundred three thousand, one hundred forty-five".