135461263 has 4 divisors (see below), whose sum is σ = 154812880. Its totient is φ = 116109648.

The previous prime is 135461257. The next prime is 135461267. The reversal of 135461263 is 362164531.

135461263 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 an emirpimes, since its reverse is a distinct semiprime: 362164531 = 3209 ⋅112859.

It is a cyclic number.

It is not a de Polignac number, because 135461263 - 2⁹ = 135460751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135461267) 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, 9675798 + ... + 9675811.

It is an arithmetic number, because the mean of its divisors is an integer number (38703220).

Almost surely, 2^135461263 is an apocalyptic number.

135461263 is a deficient number, since it is larger than the sum of its proper divisors (19351617).

135461263 is an equidigital number, since it uses as much as digits as its factorization.

135461263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19351616.

The product of its digits is 12960, while the sum is 31.

The square root of 135461263 is about 11638.7827112632. The cubic root of 135461263 is about 513.5763780875.

The spelling of 135461263 in words is "one hundred thirty-five million, four hundred sixty-one thousand, two hundred sixty-three".