1355235052391 has 8 divisors (see below), whose sum is σ = 1478449098000. Its totient is φ = 1232022816640.

The previous prime is 1355235052373. The next prime is 1355235052397. The reversal of 1355235052391 is 1932505325531.

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

It is not a de Polignac number, because 1355235052391 - 2¹⁴ = 1355235036007 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 (1355235052397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1467455 + ... + 2205423.

It is an arithmetic number, because the mean of its divisors is an integer number (184806137250).

Almost surely, 2^{1355235052391} is an apocalyptic number.

1355235052391 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1355235052391 is a deficient number, since it is larger than the sum of its proper divisors (123214045609).

1355235052391 is a wasteful number, since it uses less digits than its factorization.

1355235052391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904929.

The product of its (nonzero) digits is 607500, while the sum is 44.

The spelling of 1355235052391 in words is "one trillion, three hundred fifty-five billion, two hundred thirty-five million, fifty-two thousand, three hundred ninety-one".