1387252316 has 12 divisors (see below), whose sum is σ = 2473497432. Its totient is φ = 680538768.

The previous prime is 1387252313. The next prime is 1387252319. The reversal of 1387252316 is 6132527831.

It is an interprime number because it is at equal distance from previous prime (1387252313) and next prime (1387252319).

It is a self number, because there is not a number n which added to its sum of digits gives 1387252316.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1387252313) 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, 3271610 + ... + 3272033.

It is an arithmetic number, because the mean of its divisors is an integer number (206124786).

Almost surely, 2^1387252316 is an apocalyptic number.

It is an amenable number.

1387252316 is a deficient number, since it is larger than the sum of its proper divisors (1086245116).

1387252316 is a wasteful number, since it uses less digits than its factorization.

1387252316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6543700 (or 6543698 counting only the distinct ones).

The product of its digits is 60480, while the sum is 38.

The square root of 1387252316 is about 37245.8362236640. The cubic root of 1387252316 is about 1115.2831809037.

The spelling of 1387252316 in words is "one billion, three hundred eighty-seven million, two hundred fifty-two thousand, three hundred sixteen".