135512451 has 12 divisors (see below), whose sum is σ = 195856440. Its totient is φ = 90288000.

The previous prime is 135512431. The next prime is 135512459. The reversal of 135512451 is 154215531.

It is not a de Polignac number, because 135512451 - 2⁶ = 135512387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135512459) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16915 + ... + 23603.

It is an arithmetic number, because the mean of its divisors is an integer number (16321370).

Almost surely, 2^135512451 is an apocalyptic number.

135512451 is a deficient number, since it is larger than the sum of its proper divisors (60343989).

135512451 is a wasteful number, since it uses less digits than its factorization.

135512451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8946 (or 8943 counting only the distinct ones).

The product of its digits is 3000, while the sum is 27.

The square root of 135512451 is about 11640.9815307817. The cubic root of 135512451 is about 513.6410598925.

Adding to 135512451 its reverse (154215531), we get a palindrome (289727982).

The spelling of 135512451 in words is "one hundred thirty-five million, five hundred twelve thousand, four hundred fifty-one".