10145521345 has 4 divisors (see below), whose sum is σ = 12174625620. Its totient is φ = 8116417072.

The previous prime is 10145521339. The next prime is 10145521361. The reversal of 10145521345 is 54312554101.

10145521345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7698834049 + 2446687296 = 87743^2 + 49464^2 .

It is a cyclic number.

It is not a de Polignac number, because 10145521345 - 2¹³ = 10145513153 is a prime.

It is an unprimeable number.

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, 1014552130 + ... + 1014552139.

It is an arithmetic number, because the mean of its divisors is an integer number (3043656405).

Almost surely, 2^10145521345 is an apocalyptic number.

It is an amenable number.

10145521345 is a deficient number, since it is larger than the sum of its proper divisors (2029104275).

10145521345 is an equidigital number, since it uses as much as digits as its factorization.

10145521345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2029104274.

The product of its (nonzero) digits is 12000, while the sum is 31.

The spelling of 10145521345 in words is "ten billion, one hundred forty-five million, five hundred twenty-one thousand, three hundred forty-five".