145520030143 has 4 divisors (see below), whose sum is σ = 146665857280. Its totient is φ = 144374203008.

The previous prime is 145520030129. The next prime is 145520030179. The reversal of 145520030143 is 341030025541.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145520030143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145520030443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 572913378 + ... + 572913631.

It is an arithmetic number, because the mean of its divisors is an integer number (36666464320).

Almost surely, 2^145520030143 is an apocalyptic number.

145520030143 is a deficient number, since it is larger than the sum of its proper divisors (1145827137).

145520030143 is a wasteful number, since it uses less digits than its factorization.

145520030143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1145827136.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 145520030143 its reverse (341030025541), we get a palindrome (486550055684).

The spelling of 145520030143 in words is "one hundred forty-five billion, five hundred twenty million, thirty thousand, one hundred forty-three".