135125026 has 4 divisors (see below), whose sum is σ = 202687542. Its totient is φ = 67562512.

The previous prime is 135125021. The next prime is 135125041. The reversal of 135125026 is 620521531.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 128799801 + 6325225 = 11349^2 + 2515^2 .

It is not an unprimeable number, because it can be changed into a prime (135125021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33781255 + ... + 33781258.

Almost surely, 2^135125026 is an apocalyptic number.

135125026 is a deficient number, since it is larger than the sum of its proper divisors (67562516).

135125026 is an equidigital number, since it uses as much as digits as its factorization.

135125026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67562515.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 135125026 is about 11624.3290559068. The cubic root of 135125026 is about 513.1510991792.

Adding to 135125026 its reverse (620521531), we get a palindrome (755646557).

The spelling of 135125026 in words is "one hundred thirty-five million, one hundred twenty-five thousand, twenty-six".