2315601623 has 4 divisors (see below), whose sum is σ = 2315961648. Its totient is φ = 2315241600.

The previous prime is 2315601619. The next prime is 2315601653. The reversal of 2315601623 is 3261065132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2315601623 - 2² = 2315601619 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 (2315601653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170186 + ... + 183287.

It is an arithmetic number, because the mean of its divisors is an integer number (578990412).

Almost surely, 2^2315601623 is an apocalyptic number.

2315601623 is a deficient number, since it is larger than the sum of its proper divisors (360025).

2315601623 is an equidigital number, since it uses as much as digits as its factorization.

2315601623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360024.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 2315601623 is about 48120.6984882805. The cubic root of 2315601623 is about 1322.9840706124.

Adding to 2315601623 its reverse (3261065132), we get a palindrome (5576666755).

The spelling of 2315601623 in words is "two billion, three hundred fifteen million, six hundred one thousand, six hundred twenty-three".