135262551121 has 4 divisors (see below), whose sum is σ = 135264738544. Its totient is φ = 135260363700.

The previous prime is 135262551077. The next prime is 135262551163. The reversal of 135262551121 is 121155262531.

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 135262551121 - 2¹¹ = 135262549073 is a prime.

It is a super-2 number, since 2×135262551121² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135262551191) 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, 998175 + ... + 1125556.

It is an arithmetic number, because the mean of its divisors is an integer number (33816184636).

Almost surely, 2^135262551121 is an apocalyptic number.

It is an amenable number.

135262551121 is a deficient number, since it is larger than the sum of its proper divisors (2187423).

135262551121 is an equidigital number, since it uses as much as digits as its factorization.

135262551121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2187422.

The product of its digits is 18000, while the sum is 34.

The spelling of 135262551121 in words is "one hundred thirty-five billion, two hundred sixty-two million, five hundred fifty-one thousand, one hundred twenty-one".