1387755337 has 8 divisors (see below), whose sum is σ = 1435670856. Its totient is φ = 1340387712.

The previous prime is 1387755329. The next prime is 1387755349. The reversal of 1387755337 is 7335577831.

It can be written as a sum of positive squares in 4 ways, for example, as 381850681 + 1005904656 = 19541^2 + 31716^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1387755337 - 2³ = 1387755329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1387755037) 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, 131818 + ... + 141955.

It is an arithmetic number, because the mean of its divisors is an integer number (179458857).

Almost surely, 2^1387755337 is an apocalyptic number.

It is an amenable number.

1387755337 is a deficient number, since it is larger than the sum of its proper divisors (47915519).

1387755337 is a wasteful number, since it uses less digits than its factorization.

1387755337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273947.

The product of its digits is 1852200, while the sum is 49.

The square root of 1387755337 is about 37252.5883261821. The cubic root of 1387755337 is about 1115.4179660614.

The spelling of 1387755337 in words is "one billion, three hundred eighty-seven million, seven hundred fifty-five thousand, three hundred thirty-seven".