1375397587 has 16 divisors (see below), whose sum is σ = 1449662400. Its totient is φ = 1303102080.

The previous prime is 1375397579. The next prime is 1375397591. The reversal of 1375397587 is 7857935731.

It is a cyclic number.

It is not a de Polignac number, because 1375397587 - 2³ = 1375397579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1375397567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 470053 + ... + 472969.

It is an arithmetic number, because the mean of its divisors is an integer number (90603900).

Almost surely, 2^1375397587 is an apocalyptic number.

1375397587 is a deficient number, since it is larger than the sum of its proper divisors (74264813).

1375397587 is a wasteful number, since it uses less digits than its factorization.

1375397587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3246.

The product of its digits is 5556600, while the sum is 55.

The square root of 1375397587 is about 37086.3531100053. The cubic root of 1375397587 is about 1112.0972138132.

The spelling of 1375397587 in words is "one billion, three hundred seventy-five million, three hundred ninety-seven thousand, five hundred eighty-seven".