2115623242 has 8 divisors (see below), whose sum is σ = 3360107556. Its totient is φ = 995587392.

The previous prime is 2115623231. The next prime is 2115623243. The reversal of 2115623242 is 2423265112.

It can be written as a sum of positive squares in 2 ways, for example, as 2023290361 + 92332881 = 44981^2 + 9609^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2115623242.

It is not an unprimeable number, because it can be changed into a prime (2115623243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31112073 + ... + 31112140.

Almost surely, 2^2115623242 is an apocalyptic number.

2115623242 is a deficient number, since it is larger than the sum of its proper divisors (1244484314).

2115623242 is a wasteful number, since it uses less digits than its factorization.

2115623242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62224232.

The product of its digits is 5760, while the sum is 28.

The square root of 2115623242 is about 45995.9046220422. The cubic root of 2115623242 is about 1283.7470043199.

Adding to 2115623242 its reverse (2423265112), we get a palindrome (4538888354).

The spelling of 2115623242 in words is "two billion, one hundred fifteen million, six hundred twenty-three thousand, two hundred forty-two".