1245455355133 has 4 divisors (see below), whose sum is σ = 1358678569248. Its totient is φ = 1132232141020.

The previous prime is 1245455355119. The next prime is 1245455355143. The reversal of 1245455355133 is 3315535545421.

It is a happy number.

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 1245455355133 - 2²¹ = 1245453257981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245455355143) 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, 56611607041 + ... + 56611607062.

It is an arithmetic number, because the mean of its divisors is an integer number (339669642312).

Almost surely, 2^{1245455355133} is an apocalyptic number.

It is an amenable number.

1245455355133 is a deficient number, since it is larger than the sum of its proper divisors (113223214115).

1245455355133 is a wasteful number, since it uses less digits than its factorization.

1245455355133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113223214114.

The product of its digits is 2700000, while the sum is 46.

The spelling of 1245455355133 in words is "one trillion, two hundred forty-five billion, four hundred fifty-five million, three hundred fifty-five thousand, one hundred thirty-three".