135127801 has 4 divisors (see below), whose sum is σ = 138270352. Its totient is φ = 131985252.

The previous prime is 135127789. The next prime is 135127813. The reversal of 135127801 is 108721531.

135127801 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 108721531 = 4409 ⋅24659.

It is an interprime number because it is at equal distance from previous prime (135127789) and next prime (135127813).

It is a cyclic number.

It is not a de Polignac number, because 135127801 - 2¹³ = 135119609 is a prime.

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 135127801.

It is not an unprimeable number, because it can be changed into a prime (135127831) 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, 1571211 + ... + 1571296.

It is an arithmetic number, because the mean of its divisors is an integer number (34567588).

Almost surely, 2^135127801 is an apocalyptic number.

It is an amenable number.

135127801 is a deficient number, since it is larger than the sum of its proper divisors (3142551).

135127801 is an equidigital number, since it uses as much as digits as its factorization.

135127801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3142550.

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 135127801 is about 11624.4484170218. The cubic root of 135127801 is about 513.1546119372.

The spelling of 135127801 in words is "one hundred thirty-five million, one hundred twenty-seven thousand, eight hundred one".