135469261 has 4 divisors (see below), whose sum is σ = 136444000. Its totient is φ = 134494524.

The previous prime is 135469211. The next prime is 135469267. The reversal of 135469261 is 162964531.

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 not a de Polignac number, because 135469261 - 2¹⁵ = 135436493 is a prime.

It is a super-2 number, since 2×135469261² = 36703841351772242, 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 135469261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135469267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 487161 + ... + 487438.

It is an arithmetic number, because the mean of its divisors is an integer number (34111000).

Almost surely, 2^135469261 is an apocalyptic number.

It is an amenable number.

135469261 is a deficient number, since it is larger than the sum of its proper divisors (974739).

135469261 is an equidigital number, since it uses as much as digits as its factorization.

135469261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974738.

The product of its digits is 38880, while the sum is 37.

The square root of 135469261 is about 11639.1262988250. The cubic root of 135469261 is about 513.5864855355.

The spelling of 135469261 in words is "one hundred thirty-five million, four hundred sixty-nine thousand, two hundred sixty-one".