1875999401 has 2 divisors, whose sum is σ = 1875999402. Its totient is φ = 1875999400.

The previous prime is 1875999353. The next prime is 1875999421. The reversal of 1875999401 is 1049995781.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1332177001 + 543822400 = 36499^2 + 23320^2 .

It is an emirp because it is prime and its reverse (1049995781) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1875999401 is a prime.

It is not a weakly prime, because it can be changed into another prime (1875999421) 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 as a sum of consecutive naturals, namely, 937999700 + 937999701.

It is an arithmetic number, because the mean of its divisors is an integer number (937999701).

Almost surely, 2^1875999401 is an apocalyptic number.

It is an amenable number.

1875999401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1875999401 is an equidigital number, since it uses as much as digits as its factorization.

1875999401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 816480, while the sum is 53.

The square root of 1875999401 is about 43312.8087406024. The cubic root of 1875999401 is about 1233.3250857902.

The spelling of 1875999401 in words is "one billion, eight hundred seventy-five million, nine hundred ninety-nine thousand, four hundred one".