1354023545221 has 4 divisors (see below), whose sum is σ = 1354036064832. Its totient is φ = 1354011025612.

The previous prime is 1354023545201. The next prime is 1354023545293. The reversal of 1354023545221 is 1225453204531.

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 1354023545221 - 2¹³ = 1354023537029 is a prime.

It is a super-2 number, since 2×1354023545221² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1354023545201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6096151 + ... + 6314356.

It is an arithmetic number, because the mean of its divisors is an integer number (338509016208).

Almost surely, 2^{1354023545221} is an apocalyptic number.

It is an amenable number.

1354023545221 is a deficient number, since it is larger than the sum of its proper divisors (12519611).

1354023545221 is a wasteful number, since it uses less digits than its factorization.

1354023545221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12519610.

The product of its (nonzero) digits is 144000, while the sum is 37.

Adding to 1354023545221 its reverse (1225453204531), we get a palindrome (2579476749752).

The spelling of 1354023545221 in words is "one trillion, three hundred fifty-four billion, twenty-three million, five hundred forty-five thousand, two hundred twenty-one".