135691464 has 128 divisors (see below), whose sum is σ = 382464000. Its totient is φ = 39916800.

The previous prime is 135691463. The next prime is 135691519. The reversal of 135691464 is 464196531.

It is not an unprimeable number, because it can be changed into a prime (135691463) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 409779 + ... + 410109.

It is an arithmetic number, because the mean of its divisors is an integer number (2988000).

Almost surely, 2^135691464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135691464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191232000).

135691464 is an abundant number, since it is smaller than the sum of its proper divisors (246772536).

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

135691464 is a wasteful number, since it uses less digits than its factorization.

135691464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419 (or 415 counting only the distinct ones).

The product of its digits is 77760, while the sum is 39.

The square root of 135691464 is about 11648.6679066750. The cubic root of 135691464 is about 513.8671349822.

The spelling of 135691464 in words is "one hundred thirty-five million, six hundred ninety-one thousand, four hundred sixty-four".