135022661 has 4 divisors (see below), whose sum is σ = 135049824. Its totient is φ = 134995500.

The previous prime is 135022651. The next prime is 135022703. The reversal of 135022661 is 166220531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135022661 is a prime.

It is a super-2 number, since 2×135022661² = 36462237967041842, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 135022661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135022631) 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, 3755 + ... + 16856.

It is an arithmetic number, because the mean of its divisors is an integer number (33762456).

Almost surely, 2^135022661 is an apocalyptic number.

It is an amenable number.

135022661 is a deficient number, since it is larger than the sum of its proper divisors (27163).

135022661 is an equidigital number, since it uses as much as digits as its factorization.

135022661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27162.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 135022661 is about 11619.9251718761. The cubic root of 135022661 is about 513.0214859267.

The spelling of 135022661 in words is "one hundred thirty-five million, twenty-two thousand, six hundred sixty-one".