145536140321 has 16 divisors (see below), whose sum is σ = 179978447040. Its totient is φ = 115700425920.

The previous prime is 145536140317. The next prime is 145536140339. The reversal of 145536140321 is 123041635541.

It is a cyclic number.

It is not a de Polignac number, because 145536140321 - 2² = 145536140317 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (145536140341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26779790 + ... + 26785223.

It is an arithmetic number, because the mean of its divisors is an integer number (11248652940).

Almost surely, 2^145536140321 is an apocalyptic number.

145536140321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

145536140321 is a deficient number, since it is larger than the sum of its proper divisors (34442306719).

145536140321 is a wasteful number, since it uses less digits than its factorization.

145536140321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53565056.

The product of its (nonzero) digits is 43200, while the sum is 35.

Adding to 145536140321 its reverse (123041635541), we get a palindrome (268577775862).

The spelling of 145536140321 in words is "one hundred forty-five billion, five hundred thirty-six million, one hundred forty thousand, three hundred twenty-one".