1375287540 has 48 divisors (see below), whose sum is σ = 4200880320. Its totient is φ = 333402880.

The previous prime is 1375287523. The next prime is 1375287569. The reversal of 1375287540 is 457825731.

It is a junction number, because it is equal to n+sod(n) for n = 1375287492 and 1375287501.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1041225 + ... + 1042544.

It is an arithmetic number, because the mean of its divisors is an integer number (87518340).

Almost surely, 2^1375287540 is an apocalyptic number.

1375287540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1375287540 is an abundant number, since it is smaller than the sum of its proper divisors (2825592780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1375287540 is a wasteful number, since it uses less digits than its factorization.

1375287540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2083792 (or 2083790 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 42.

The square root of 1375287540 is about 37084.8694213691. The cubic root of 1375287540 is about 1112.0675530015.

The spelling of 1375287540 in words is "one billion, three hundred seventy-five million, two hundred eighty-seven thousand, five hundred forty".