145017450321453 has 12 divisors (see below), whose sum is σ = 210532948184988. Its totient is φ = 96187547420160.

The previous prime is 145017450321439. The next prime is 145017450321493. The reversal of 145017450321453 is 354123054710541.

145017450321453 is a `hidden beast` number, since 1 + 4 + 5 + 0 + 1 + 74 + 503 + 21 + 4 + 53 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 143911381638249 + 1106068683204 = 11996307^2 + 1051698^2 .

It is not a de Polignac number, because 145017450321453 - 2⁴ = 145017450321437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 145017450321399 and 145017450321408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145017450321413) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40896064308 + ... + 40896067853.

It is an arithmetic number, because the mean of its divisors is an integer number (17544412348749).

Almost surely, 2^{145017450321453} is an apocalyptic number.

It is an amenable number.

145017450321453 is a deficient number, since it is larger than the sum of its proper divisors (65515497863535).

145017450321453 is a wasteful number, since it uses less digits than its factorization.

145017450321453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81792132364 (or 81792132361 counting only the distinct ones).

The product of its (nonzero) digits is 1008000, while the sum is 45.

The spelling of 145017450321453 in words is "one hundred forty-five trillion, seventeen billion, four hundred fifty million, three hundred twenty-one thousand, four hundred fifty-three".