530145751 has 4 divisors (see below), whose sum is σ = 532810000. Its totient is φ = 527481504.

The previous prime is 530145743. The next prime is 530145757. The reversal of 530145751 is 157541035.

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

It is a cyclic number.

It is not a de Polignac number, because 530145751 - 2³ = 530145743 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 (530145757) 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, 1331826 + ... + 1332223.

It is an arithmetic number, because the mean of its divisors is an integer number (133202500).

Almost surely, 2^530145751 is an apocalyptic number.

530145751 is a deficient number, since it is larger than the sum of its proper divisors (2664249).

530145751 is a wasteful number, since it uses less digits than its factorization.

530145751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2664248.

The product of its (nonzero) digits is 10500, while the sum is 31.

The square root of 530145751 is about 23024.8941582801. The cubic root of 530145751 is about 809.3414099962.

Adding to 530145751 its reverse (157541035), we get a palindrome (687686786).

The spelling of 530145751 in words is "five hundred thirty million, one hundred forty-five thousand, seven hundred fifty-one".