135623514 has 48 divisors (see below), whose sum is σ = 296249184. Its totient is φ = 41371200.

The previous prime is 135623513. The next prime is 135623533. The reversal of 135623514 is 415326531.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (135623513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 132324 + ... + 133344.

It is an arithmetic number, because the mean of its divisors is an integer number (6171858).

Almost surely, 2^135623514 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135623514, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148124592).

135623514 is an abundant number, since it is smaller than the sum of its proper divisors (160625670).

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

135623514 is a wasteful number, since it uses less digits than its factorization.

135623514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1183 (or 1170 counting only the distinct ones).

The product of its digits is 10800, while the sum is 30.

The square root of 135623514 is about 11645.7508989331. The cubic root of 135623514 is about 513.7813445158.

The spelling of 135623514 in words is "one hundred thirty-five million, six hundred twenty-three thousand, five hundred fourteen".