4545351531 has 20 divisors (see below), whose sum is σ = 7759966192. Its totient is φ = 2597343408.

The previous prime is 4545351491. The next prime is 4545351539. The reversal of 4545351531 is 1351535454.

4545351531 is a `hidden beast` number, since 454 + 53 + 5 + 153 + 1 = 666.

It is not a de Polignac number, because 4545351531 - 2⁶ = 4545351467 is a prime.

It is a super-2 number, since 2×4545351531² = 41320441080728087922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4545351539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4007680 + ... + 4008813.

Almost surely, 2^4545351531 is an apocalyptic number.

4545351531 is a deficient number, since it is larger than the sum of its proper divisors (3214614661).

4545351531 is an equidigital number, since it uses as much as digits as its factorization.

4545351531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8016512 (or 8016503 counting only the distinct ones).

The product of its digits is 90000, while the sum is 36.

The square root of 4545351531 is about 67419.2222663537. Note that the first 4 decimals coincide. The cubic root of 4545351531 is about 1656.4912983839.

Adding to 4545351531 its reverse (1351535454), we get a palindrome (5896886985).

The spelling of 4545351531 in words is "four billion, five hundred forty-five million, three hundred fifty-one thousand, five hundred thirty-one".