145452231346441 has 4 divisors (see below), whose sum is σ = 145494233149312. Its totient is φ = 145410229543572.

The previous prime is 145452231346337. The next prime is 145452231346493. The reversal of 145452231346441 is 144643132254541.

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 145452231346441 - 2⁹ = 145452231345929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145452231340441) 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, 21000896241 + ... + 21000903166.

It is an arithmetic number, because the mean of its divisors is an integer number (36373558287328).

Almost surely, 2^{145452231346441} is an apocalyptic number.

It is an amenable number.

145452231346441 is a deficient number, since it is larger than the sum of its proper divisors (42001802871).

145452231346441 is an equidigital number, since it uses as much as digits as its factorization.

145452231346441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42001802870.

The product of its digits is 5529600, while the sum is 49.

The spelling of 145452231346441 in words is "one hundred forty-five trillion, four hundred fifty-two billion, two hundred thirty-one million, three hundred forty-six thousand, four hundred forty-one".