615122313 has 12 divisors (see below), whose sum is σ = 888106320. Its totient is φ = 378536496.

The previous prime is 615122273. The next prime is 615122363. The reversal of 615122313 is 313221516.

It is not a de Polignac number, because 615122313 - 2²² = 610928009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (615122363) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 606123 + ... + 607136.

It is an arithmetic number, because the mean of its divisors is an integer number (74008860).

Almost surely, 2^615122313 is an apocalyptic number.

It is an amenable number.

615122313 is a deficient number, since it is larger than the sum of its proper divisors (272984007).

615122313 is a wasteful number, since it uses less digits than its factorization.

615122313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1213288 (or 1213275 counting only the distinct ones).

The product of its digits is 1080, while the sum is 24.

The square root of 615122313 is about 24801.6594807686. The cubic root of 615122313 is about 850.4598724899.

Adding to 615122313 its reverse (313221516), we get a palindrome (928343829).

The spelling of 615122313 in words is "six hundred fifteen million, one hundred twenty-two thousand, three hundred thirteen".