1387122607 has 8 divisors (see below), whose sum is σ = 1572446960. Its totient is φ = 1213030080.

The previous prime is 1387122593. The next prime is 1387122623. The reversal of 1387122607 is 7062217831.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1387122607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1387122647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2807694 + ... + 2808187.

It is an arithmetic number, because the mean of its divisors is an integer number (196555870).

Almost surely, 2^1387122607 is an apocalyptic number.

1387122607 is a deficient number, since it is larger than the sum of its proper divisors (185324353).

1387122607 is a wasteful number, since it uses less digits than its factorization.

1387122607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5615913.

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 1387122607 is about 37244.0949279211. The cubic root of 1387122607 is about 1115.2484199177.

The spelling of 1387122607 in words is "one billion, three hundred eighty-seven million, one hundred twenty-two thousand, six hundred seven".