2315121653 has 8 divisors (see below), whose sum is σ = 2494060800. Its totient is φ = 2136304368.

The previous prime is 2315121647. The next prime is 2315121661. The reversal of 2315121653 is 3561215132.

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 2315121653 - 2⁸ = 2315121397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2315120653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11108 + ... + 68946.

It is an arithmetic number, because the mean of its divisors is an integer number (311757600).

Almost surely, 2^2315121653 is an apocalyptic number.

It is an amenable number.

2315121653 is a deficient number, since it is larger than the sum of its proper divisors (178939147).

2315121653 is a wasteful number, since it uses less digits than its factorization.

2315121653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60931.

The product of its digits is 5400, while the sum is 29.

The square root of 2315121653 is about 48115.7110827638. The cubic root of 2315121653 is about 1322.8926564221.

Adding to 2315121653 its reverse (3561215132), we get a palindrome (5876336785).

The spelling of 2315121653 in words is "two billion, three hundred fifteen million, one hundred twenty-one thousand, six hundred fifty-three".