145231445500553 has 4 divisors (see below), whose sum is σ = 145238106598608. Its totient is φ = 145224784402500.

The previous prime is 145231445500523. The next prime is 145231445500567. The reversal of 145231445500553 is 355005544132541.

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 145231445500553 - 2⁶ = 145231445500489 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145231445500498 and 145231445500507.

It is not an unprimeable number, because it can be changed into a prime (145231445500513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3330516323 + ... + 3330559928.

It is an arithmetic number, because the mean of its divisors is an integer number (36309526649652).

Almost surely, 2^{145231445500553} is an apocalyptic number.

It is an amenable number.

145231445500553 is a deficient number, since it is larger than the sum of its proper divisors (6661098055).

145231445500553 is an equidigital number, since it uses as much as digits as its factorization.

145231445500553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6661098054.

The product of its (nonzero) digits is 3600000, while the sum is 47.

The spelling of 145231445500553 in words is "one hundred forty-five trillion, two hundred thirty-one billion, four hundred forty-five million, five hundred thousand, five hundred fifty-three".