135071784 has 24 divisors (see below), whose sum is σ = 365819610. Its totient is φ = 45023904.

The previous prime is 135071777. The next prime is 135071791. The reversal of 135071784 is 487170531.

It is an interprime number because it is at equal distance from previous prime (135071777) and next prime (135071791).

It can be written as a sum of positive squares in only one way, i.e., 135070884 + 900 = 11622^2 + 30^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 937927 + ... + 938070.

Almost surely, 2^135071784 is an apocalyptic number.

It is an amenable number.

135071784 is an abundant number, since it is smaller than the sum of its proper divisors (230747826).

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

135071784 is a wasteful number, since it uses less digits than its factorization.

135071784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1876009 (or 1876002 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 135071784 is about 11622.0387196051. The cubic root of 135071784 is about 513.0836930128.

The spelling of 135071784 in words is "one hundred thirty-five million, seventy-one thousand, seven hundred eighty-four".