612741249 has 6 divisors (see below), whose sum is σ = 885070706. Its totient is φ = 408494160.

The previous prime is 612741247. The next prime is 612741253. The reversal of 612741249 is 942147216.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 513838224 + 98903025 = 22668^2 + 9945^2 .

It is not a de Polignac number, because 612741249 - 2¹ = 612741247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (612741247) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34041172 + ... + 34041189.

Almost surely, 2^612741249 is an apocalyptic number.

It is an amenable number.

612741249 is a deficient number, since it is larger than the sum of its proper divisors (272329457).

612741249 is a wasteful number, since it uses less digits than its factorization.

612741249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68082367 (or 68082364 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 612741249 is about 24753.6108275136. The cubic root of 612741249 is about 849.3611111439.

The spelling of 612741249 in words is "six hundred twelve million, seven hundred forty-one thousand, two hundred forty-nine".