1375000019 has 4 divisors (see below), whose sum is σ = 1375513296. Its totient is φ = 1374486744.

The previous prime is 1375000013. The next prime is 1375000027. The reversal of 1375000019 is 9100005731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9100005731 = 44683 ⋅203657.

It is a cyclic number.

It is not a de Polignac number, because 1375000019 - 2²⁰ = 1373951443 is a prime.

It is a super-2 number, since 2×1375000019² = 3781250104500000722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1375000013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252599 + ... + 257984.

It is an arithmetic number, because the mean of its divisors is an integer number (343878324).

Almost surely, 2^1375000019 is an apocalyptic number.

1375000019 is a deficient number, since it is larger than the sum of its proper divisors (513277).

1375000019 is an equidigital number, since it uses as much as digits as its factorization.

1375000019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513276.

The product of its (nonzero) digits is 945, while the sum is 26.

The square root of 1375000019 is about 37080.9926916743. The cubic root of 1375000019 is about 1111.9900504066.

The spelling of 1375000019 in words is "one billion, three hundred seventy-five million, nineteen", and thus it is an aban number.