3812781201 has 4 divisors (see below), whose sum is σ = 5083708272. Its totient is φ = 2541854132.

The previous prime is 3812781191. The next prime is 3812781227. The reversal of 3812781201 is 1021872183.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3812781201 - 2⁷ = 3812781073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3812781241) 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, 635463531 + ... + 635463536.

It is an arithmetic number, because the mean of its divisors is an integer number (1270927068).

Almost surely, 2^3812781201 is an apocalyptic number.

It is an amenable number.

3812781201 is a deficient number, since it is larger than the sum of its proper divisors (1270927071).

3812781201 is a wasteful number, since it uses less digits than its factorization.

3812781201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1270927070.

The product of its (nonzero) digits is 5376, while the sum is 33.

The square root of 3812781201 is about 61747.7222332938. The cubic root of 3812781201 is about 1562.2383494973.

The spelling of 3812781201 in words is "three billion, eight hundred twelve million, seven hundred eighty-one thousand, two hundred one".