1387081355 has 16 divisors (see below), whose sum is σ = 1894765824. Its totient is φ = 964925280.

The previous prime is 1387081337. The next prime is 1387081361. The reversal of 1387081355 is 5531807831.

It is not a de Polignac number, because 1387081355 - 2⁸ = 1387081099 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 546989 + ... + 549518.

It is an arithmetic number, because the mean of its divisors is an integer number (118422864).

Almost surely, 2^1387081355 is an apocalyptic number.

1387081355 is a deficient number, since it is larger than the sum of its proper divisors (507684469).

1387081355 is a wasteful number, since it uses less digits than its factorization.

1387081355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1096546.

The product of its (nonzero) digits is 100800, while the sum is 41.

The square root of 1387081355 is about 37243.5411178905. The cubic root of 1387081355 is about 1115.2373642538.

The spelling of 1387081355 in words is "one billion, three hundred eighty-seven million, eighty-one thousand, three hundred fifty-five".