135131451 has 16 divisors (see below), whose sum is σ = 221754624. Its totient is φ = 71277984.

The previous prime is 135131431. The next prime is 135131467. The reversal of 135131451 is 154131531.

135131451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 135131451 - 2¹⁰ = 135130427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135131431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 247221 + ... + 247766.

It is an arithmetic number, because the mean of its divisors is an integer number (13859664).

Almost surely, 2^135131451 is an apocalyptic number.

135131451 is a deficient number, since it is larger than the sum of its proper divisors (86623173).

135131451 is a wasteful number, since it uses less digits than its factorization.

135131451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495010.

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

The square root of 135131451 is about 11624.6054126581. The cubic root of 135131451 is about 513.1592322484.

Adding to 135131451 its reverse (154131531), we get a palindrome (289262982).

The spelling of 135131451 in words is "one hundred thirty-five million, one hundred thirty-one thousand, four hundred fifty-one".