1870381201 has 4 divisors (see below), whose sum is σ = 2014256692. Its totient is φ = 1726505712.

The previous prime is 1870381199. The next prime is 1870381211. The reversal of 1870381201 is 1021830781.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1134072976 + 736308225 = 33676^2 + 27135^2 .

It is a cyclic number.

It is not a de Polignac number, because 1870381201 - 2¹ = 1870381199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1870381211) 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 in 3 ways as a sum of consecutive naturals, for example, 71937726 + ... + 71937751.

It is an arithmetic number, because the mean of its divisors is an integer number (503564173).

Almost surely, 2^1870381201 is an apocalyptic number.

It is an amenable number.

1870381201 is a deficient number, since it is larger than the sum of its proper divisors (143875491).

1870381201 is a wasteful number, since it uses less digits than its factorization.

1870381201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143875490.

The product of its (nonzero) digits is 2688, while the sum is 31.

The square root of 1870381201 is about 43247.9040070152. The cubic root of 1870381201 is about 1232.0926768089.

The spelling of 1870381201 in words is "one billion, eight hundred seventy million, three hundred eighty-one thousand, two hundred one".