1215342002 has 24 divisors (see below), whose sum is σ = 2245394844. Its totient is φ = 490221312.

The previous prime is 1215342001. The next prime is 1215342013. The reversal of 1215342002 is 2002435121.

It can be written as a sum of positive squares in 2 ways, for example, as 1042708681 + 172633321 = 32291^2 + 13139^2 .

It is not an unprimeable number, because it can be changed into a prime (1215342001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 363083 + ... + 366414.

Almost surely, 2^1215342002 is an apocalyptic number.

1215342002 is a deficient number, since it is larger than the sum of its proper divisors (1030052842).

1215342002 is a wasteful number, since it uses less digits than its factorization.

1215342002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729530 (or 729523 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 1215342002 is about 34861.7555782838. The cubic root of 1215342002 is about 1067.1681024996.

Adding to 1215342002 its reverse (2002435121), we get a palindrome (3217777123).

The spelling of 1215342002 in words is "one billion, two hundred fifteen million, three hundred forty-two thousand, two".