1375035681 has 8 divisors (see below), whose sum is σ = 1929874720. Its totient is φ = 868443552.

The previous prime is 1375035661. The next prime is 1375035691. The reversal of 1375035681 is 1865305731.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1375035681 - 2⁹ = 1375035169 is a prime.

It is a super-2 number, since 2×1375035681² = 3781446248046267522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1375035631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12061660 + ... + 12061773.

It is an arithmetic number, because the mean of its divisors is an integer number (241234340).

Almost surely, 2^1375035681 is an apocalyptic number.

It is an amenable number.

1375035681 is a deficient number, since it is larger than the sum of its proper divisors (554839039).

1375035681 is a wasteful number, since it uses less digits than its factorization.

1375035681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24123455.

The product of its (nonzero) digits is 75600, while the sum is 39.

The square root of 1375035681 is about 37081.4735548629. The cubic root of 1375035681 is about 1111.9996638480. Note that the first 3 decimals are identical.

The spelling of 1375035681 in words is "one billion, three hundred seventy-five million, thirty-five thousand, six hundred eighty-one".