1375138875 has 32 divisors (see below), whose sum is σ = 2496259584. Its totient is φ = 666732000.

The previous prime is 1375138871. The next prime is 1375138879. The reversal of 1375138875 is 5788315731.

It is an interprime number because it is at equal distance from previous prime (1375138871) and next prime (1375138879).

It is not a de Polignac number, because 1375138875 - 2² = 1375138871 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1375138871) 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 31 ways as a sum of consecutive naturals, for example, 162559 + ... + 170808.

It is an arithmetic number, because the mean of its divisors is an integer number (78008112).

Almost surely, 2^1375138875 is an apocalyptic number.

1375138875 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1375138875 is a deficient number, since it is larger than the sum of its proper divisors (1121120709).

1375138875 is a wasteful number, since it uses less digits than its factorization.

1375138875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333396 (or 333386 counting only the distinct ones).

The product of its digits is 705600, while the sum is 48.

The square root of 1375138875 is about 37082.8649783158. The cubic root of 1375138875 is about 1112.0274810225.

The spelling of 1375138875 in words is "one billion, three hundred seventy-five million, one hundred thirty-eight thousand, eight hundred seventy-five".