1875401321 has 2 divisors, whose sum is σ = 1875401322. Its totient is φ = 1875401320.

The previous prime is 1875401309. The next prime is 1875401383. The reversal of 1875401321 is 1231045781.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1587624025 + 287777296 = 39845^2 + 16964^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1875401321 is a prime.

It is a super-2 number, since 2×1875401321² = 7034260229617090082, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1875401621) by changing a digit.

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 as a sum of consecutive naturals, namely, 937700660 + 937700661.

It is an arithmetic number, because the mean of its divisors is an integer number (937700661).

Almost surely, 2^1875401321 is an apocalyptic number.

It is an amenable number.

1875401321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1875401321 is an equidigital number, since it uses as much as digits as its factorization.

1875401321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 1875401321 is about 43305.9039970302. The cubic root of 1875401321 is about 1233.1940080177.

The spelling of 1875401321 in words is "one billion, eight hundred seventy-five million, four hundred one thousand, three hundred twenty-one".