2391515002 has 4 divisors (see below), whose sum is σ = 3587272506. Its totient is φ = 1195757500.

The previous prime is 2391514997. The next prime is 2391515003. The reversal of 2391515002 is 2005151932.

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

It can be written as a sum of positive squares in only one way, i.e., 2328931081 + 62583921 = 48259^2 + 7911^2 .

It is not an unprimeable number, because it can be changed into a prime (2391515003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 597878749 + ... + 597878752.

Almost surely, 2^2391515002 is an apocalyptic number.

2391515002 is a deficient number, since it is larger than the sum of its proper divisors (1195757504).

2391515002 is a wasteful number, since it uses less digits than its factorization.

2391515002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1195757503.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 2391515002 is about 48903.1185304169. The cubic root of 2391515002 is about 1337.2862211911.

Adding to 2391515002 its reverse (2005151932), we get a palindrome (4396666934).

The spelling of 2391515002 in words is "two billion, three hundred ninety-one million, five hundred fifteen thousand, two".