245064531 has 4 divisors (see below), whose sum is σ = 326752712. Its totient is φ = 163376352.

The previous prime is 245064509. The next prime is 245064539. The reversal of 245064531 is 135460542.

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

It is not a de Polignac number, because 245064531 - 2⁷ = 245064403 is a prime.

It is a super-3 number, since 3×245064531³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245064539) 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, 40844086 + ... + 40844091.

It is an arithmetic number, because the mean of its divisors is an integer number (81688178).

Almost surely, 2^245064531 is an apocalyptic number.

245064531 is a deficient number, since it is larger than the sum of its proper divisors (81688181).

245064531 is an equidigital number, since it uses as much as digits as its factorization.

245064531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81688180.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 245064531 is about 15654.5370739604. The cubic root of 245064531 is about 625.7874073535.

The spelling of 245064531 in words is "two hundred forty-five million, sixty-four thousand, five hundred thirty-one".