1235440455253 has 8 divisors (see below), whose sum is σ = 1247044312800. Its totient is φ = 1223837666160.

The previous prime is 1235440455199. The next prime is 1235440455289. The reversal of 1235440455253 is 3525540445321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1235440455253 - 2⁹ = 1235440454741 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 (1235440405253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2159323 + ... + 2670871.

It is an arithmetic number, because the mean of its divisors is an integer number (155880539100).

Almost surely, 2^{1235440455253} is an apocalyptic number.

It is an amenable number.

1235440455253 is a deficient number, since it is larger than the sum of its proper divisors (11603857547).

1235440455253 is a wasteful number, since it uses less digits than its factorization.

1235440455253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534227.

The product of its (nonzero) digits is 1440000, while the sum is 43.

The spelling of 1235440455253 in words is "one trillion, two hundred thirty-five billion, four hundred forty million, four hundred fifty-five thousand, two hundred fifty-three".