135551135 has 4 divisors (see below), whose sum is σ = 162661368. Its totient is φ = 108440904.

The previous prime is 135551107. The next prime is 135551137. The reversal of 135551135 is 531155531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 531155531 = 17 ⋅31244443.

It is a cyclic number.

It is not a de Polignac number, because 135551135 - 2¹² = 135547039 is a prime.

It is a super-2 number, since 2×135551135² = 36748220399576450, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135551098 and 135551107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135551137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13555109 + ... + 13555118.

It is an arithmetic number, because the mean of its divisors is an integer number (40665342).

Almost surely, 2^135551135 is an apocalyptic number.

135551135 is a deficient number, since it is larger than the sum of its proper divisors (27110233).

135551135 is an equidigital number, since it uses as much as digits as its factorization.

135551135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27110232.

The product of its digits is 5625, while the sum is 29.

The square root of 135551135 is about 11642.6429559615. The cubic root of 135551135 is about 513.6899306794.

The spelling of 135551135 in words is "one hundred thirty-five million, five hundred fifty-one thousand, one hundred thirty-five".