135400201 has 4 divisors (see below), whose sum is σ = 135841552. Its totient is φ = 134958852.

The previous prime is 135400171. The next prime is 135400207. The reversal of 135400201 is 102004531.

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: 102004531 = 269 ⋅379199.

It is a cyclic number.

It is not a de Polignac number, because 135400201 - 2⁷ = 135400073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135400207) 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, 220215 + ... + 220828.

It is an arithmetic number, because the mean of its divisors is an integer number (33960388).

Almost surely, 2^135400201 is an apocalyptic number.

It is an amenable number.

135400201 is a deficient number, since it is larger than the sum of its proper divisors (441351).

135400201 is an equidigital number, since it uses as much as digits as its factorization.

135400201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441350.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 135400201 is about 11636.1592031048. The cubic root of 135400201 is about 513.4991980550.

Adding to 135400201 its reverse (102004531), we get a palindrome (237404732).

The spelling of 135400201 in words is "one hundred thirty-five million, four hundred thousand, two hundred one".