537212645 has 8 divisors (see below), whose sum is σ = 645703704. Its totient is φ = 429071104.

The previous prime is 537212581. The next prime is 537212651. The reversal of 537212645 is 546212735.

It can be written as a sum of positive squares in 4 ways, for example, as 919681 + 536292964 = 959^2 + 23158^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 537212645 - 2⁶ = 537212581 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83984 + ... + 90153.

It is an arithmetic number, because the mean of its divisors is an integer number (80712963).

Almost surely, 2^537212645 is an apocalyptic number.

It is an amenable number.

537212645 is a deficient number, since it is larger than the sum of its proper divisors (108491059).

537212645 is a wasteful number, since it uses less digits than its factorization.

537212645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174759.

The product of its digits is 50400, while the sum is 35.

The square root of 537212645 is about 23177.8481529239. The cubic root of 537212645 is about 812.9217477499.

The spelling of 537212645 in words is "five hundred thirty-seven million, two hundred twelve thousand, six hundred forty-five".