2312215653 has 16 divisors (see below), whose sum is σ = 3374715456. Its totient is φ = 1396554240.

The previous prime is 2312215649. The next prime is 2312215663. The reversal of 2312215653 is 3565122132.

It is not a de Polignac number, because 2312215653 - 2² = 2312215649 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2312215653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2312215643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109900 + ... + 129237.

It is an arithmetic number, because the mean of its divisors is an integer number (210919716).

Almost surely, 2^2312215653 is an apocalyptic number.

It is an amenable number.

2312215653 is a deficient number, since it is larger than the sum of its proper divisors (1062499803).

2312215653 is a wasteful number, since it uses less digits than its factorization.

2312215653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239444.

The product of its digits is 10800, while the sum is 30.

The square root of 2312215653 is about 48085.5035639641. The cubic root of 2312215653 is about 1322.3389150847.

Adding to 2312215653 its reverse (3565122132), we get a palindrome (5877337785).

The spelling of 2312215653 in words is "two billion, three hundred twelve million, two hundred fifteen thousand, six hundred fifty-three".