145076430321 has 21 divisors (see below), whose sum is σ = 217530561801. Its totient is φ = 96710764212.

The previous prime is 145076430299. The next prime is 145076430371. The reversal of 145076430321 is 123034670541.

The square root of 145076430321 is 380889.

It is a perfect power (a square), and thus also a powerful number.

145076430321 is a `hidden beast` number, since 1 + 4 + 5 + 0 + 7 + 643 + 0 + 3 + 2 + 1 = 666.

It is not a de Polignac number, because 145076430321 - 2¹⁹ = 145075906033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (145076430371) by changing a digit.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 10276950 + ... + 10291056.

It is an arithmetic number, because the mean of its divisors is an integer number (10358598181).

Almost surely, 2^145076430321 is an apocalyptic number.

145076430321 is the 380889-th square number.

145076430321 is the 190445-th centered octagonal number.

It is an amenable number.

145076430321 is a deficient number, since it is larger than the sum of its proper divisors (72454131480).

145076430321 is an frugal number, since it uses more digits than its factorization.

145076430321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28232 (or 14110 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

Multiplying 145076430321 by its sum of digits (36), we get a square (5222751491556 = 2285334²).

The spelling of 145076430321 in words is "one hundred forty-five billion, seventy-six million, four hundred thirty thousand, three hundred twenty-one".