1390163002 has 8 divisors (see below), whose sum is σ = 2085459156. Its totient is φ = 695009952.

The previous prime is 1390162979. The next prime is 1390163009. The reversal of 1390163002 is 2003610931.

It can be written as a sum of positive squares in 2 ways, for example, as 1352106441 + 38056561 = 36771^2 + 6169^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1390163009) 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, 6793 + ... + 53164.

Almost surely, 2^1390163002 is an apocalyptic number.

1390163002 is a deficient number, since it is larger than the sum of its proper divisors (695296154).

1390163002 is a wasteful number, since it uses less digits than its factorization.

1390163002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71552.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 1390163002 is about 37284.8897276095. The cubic root of 1390163002 is about 1116.0626525165.

Adding to 1390163002 its reverse (2003610931), we get a palindrome (3393773933).

The spelling of 1390163002 in words is "one billion, three hundred ninety million, one hundred sixty-three thousand, two".