307272725 has 6 divisors (see below), whose sum is σ = 381018210. Its totient is φ = 245818160.

The previous prime is 307272697. The next prime is 307272809. The reversal of 307272725 is 527272703.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 8916196 + 298356529 = 2986^2 + 17273^2 .

It is not a de Polignac number, because 307272725 - 2¹⁸ = 307010581 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6145430 + ... + 6145479.

It is an arithmetic number, because the mean of its divisors is an integer number (63503035).

Almost surely, 2^307272725 is an apocalyptic number.

It is an amenable number.

307272725 is a deficient number, since it is larger than the sum of its proper divisors (73745485).

307272725 is a wasteful number, since it uses less digits than its factorization.

307272725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12290919 (or 12290914 counting only the distinct ones).

The product of its (nonzero) digits is 41160, while the sum is 35.

The square root of 307272725 is about 17529.1963592174. The cubic root of 307272725 is about 674.7993733880.

The spelling of 307272725 in words is "three hundred seven million, two hundred seventy-two thousand, seven hundred twenty-five".