135700005 has 32 divisors (see below), whose sum is σ = 250354944. Its totient is φ = 61479936.

The previous prime is 135699983. The next prime is 135700013. The reversal of 135700005 is 500007531.

It is a happy number.

It is not a de Polignac number, because 135700005 - 2¹¹ = 135697957 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6147 + ... + 17583.

It is an arithmetic number, because the mean of its divisors is an integer number (7823592).

Almost surely, 2^135700005 is an apocalyptic number.

135700005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

135700005 is a deficient number, since it is larger than the sum of its proper divisors (114654939).

135700005 is a wasteful number, since it uses less digits than its factorization.

135700005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11565.

The product of its (nonzero) digits is 525, while the sum is 21.

The square root of 135700005 is about 11649.0345093488. The cubic root of 135700005 is about 513.8779164197.

Adding to 135700005 its reverse (500007531), we get a palindrome (635707536).

The spelling of 135700005 in words is "one hundred thirty-five million, seven hundred thousand, five".