135613250 has 48 divisors (see below), whose sum is σ = 269823528. Its totient is φ = 51027200.

The previous prime is 135613249. The next prime is 135613253. The reversal of 135613250 is 52316531.

It can be written as a sum of positive squares in 12 ways, for example, as 2879809 + 132733441 = 1697^2 + 11521^2 .

It is not an unprimeable number, because it can be changed into a prime (135613253) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71312 + ... + 73188.

Almost surely, 2^135613250 is an apocalyptic number.

135613250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

135613250 is a deficient number, since it is larger than the sum of its proper divisors (134210278).

135613250 is a wasteful number, since it uses less digits than its factorization.

135613250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1928 (or 1901 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 135613250 is about 11645.3102148461. The cubic root of 135613250 is about 513.7683831824.

Adding to 135613250 its reverse (52316531), we get a palindrome (187929781).

The spelling of 135613250 in words is "one hundred thirty-five million, six hundred thirteen thousand, two hundred fifty".