1387525531306 has 8 divisors (see below), whose sum is σ = 2081612151360. Its totient is φ = 693654814188.

The previous prime is 1387525531297. The next prime is 1387525531309. The reversal of 1387525531306 is 6031355257831.

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 1387525531306.

It is not an unprimeable number, because it can be changed into a prime (1387525531309) 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, 53959666 + ... + 53985373.

It is an arithmetic number, because the mean of its divisors is an integer number (260201518920).

Almost surely, 2^{1387525531306} is an apocalyptic number.

1387525531306 is a deficient number, since it is larger than the sum of its proper divisors (694086620054).

1387525531306 is a wasteful number, since it uses less digits than its factorization.

1387525531306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107951468.

The product of its (nonzero) digits is 2268000, while the sum is 49.

The spelling of 1387525531306 in words is "one trillion, three hundred eighty-seven billion, five hundred twenty-five million, five hundred thirty-one thousand, three hundred six".