45321530 has 8 divisors (see below), whose sum is σ = 81578772. Its totient is φ = 18128608.

The previous prime is 45321511. The next prime is 45321553. The reversal of 45321530 is 3512354.

It can be written as a sum of positive squares in 2 ways, for example, as 44769481 + 552049 = 6691^2 + 743^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 45321496 and 45321505.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2266067 + ... + 2266086.

Almost surely, 2^45321530 is an apocalyptic number.

45321530 is a deficient number, since it is larger than the sum of its proper divisors (36257242).

45321530 is a wasteful number, since it uses less digits than its factorization.

45321530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4532160.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 45321530 is about 6732.1267070666. The cubic root of 45321530 is about 356.5344673637.

Adding to 45321530 its reverse (3512354), we get a palindrome (48833884).

The spelling of 45321530 in words is "forty-five million, three hundred twenty-one thousand, five hundred thirty".