145521340212445 has 16 divisors (see below), whose sum is σ = 180651633654960. Its totient is φ = 112399919801344.

The previous prime is 145521340212433. The next prime is 145521340212463. The reversal of 145521340212445 is 544212043125541.

145521340212445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 3196010732121 + 142325329480324 = 1787739^2 + 11930018^2 .

It is a cyclic number.

It is not a de Polignac number, because 145521340212445 - 2¹¹ = 145521340210397 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6455932 + ... + 18240661.

It is an arithmetic number, because the mean of its divisors is an integer number (11290727103435).

Almost surely, 2^{145521340212445} is an apocalyptic number.

It is an amenable number.

145521340212445 is a deficient number, since it is larger than the sum of its proper divisors (35130293442515).

145521340212445 is a wasteful number, since it uses less digits than its factorization.

145521340212445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24737264.

The product of its (nonzero) digits is 768000, while the sum is 43.

Adding to 145521340212445 its reverse (544212043125541), we get a palindrome (689733383337986).

The spelling of 145521340212445 in words is "one hundred forty-five trillion, five hundred twenty-one billion, three hundred forty million, two hundred twelve thousand, four hundred forty-five".