135220701 has 32 divisors (see below), whose sum is σ = 236620800. Its totient is φ = 66545280.

The previous prime is 135220697. The next prime is 135220727. The reversal of 135220701 is 107022531.

It is not a de Polignac number, because 135220701 - 2² = 135220697 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135220751) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11016 + ... + 19793.

It is an arithmetic number, because the mean of its divisors is an integer number (7394400).

Almost surely, 2^135220701 is an apocalyptic number.

135220701 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

135220701 is a deficient number, since it is larger than the sum of its proper divisors (101400099).

135220701 is a wasteful number, since it uses less digits than its factorization.

135220701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30849.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 135220701 is about 11628.4436189887. The cubic root of 135220701 is about 513.2721824704.

The spelling of 135220701 in words is "one hundred thirty-five million, two hundred twenty thousand, seven hundred one".