3781635141 has 4 divisors (see below), whose sum is σ = 5042180192. Its totient is φ = 2521090092.

The previous prime is 3781635139. The next prime is 3781635163. The reversal of 3781635141 is 1415361873.

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 not a de Polignac number, because 3781635141 - 2¹ = 3781635139 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3781635141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3781635101) 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, 630272521 + ... + 630272526.

It is an arithmetic number, because the mean of its divisors is an integer number (1260545048).

Almost surely, 2^3781635141 is an apocalyptic number.

It is an amenable number.

3781635141 is a deficient number, since it is larger than the sum of its proper divisors (1260545051).

3781635141 is a wasteful number, since it uses less digits than its factorization.

3781635141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1260545050.

The product of its digits is 60480, while the sum is 39.

The square root of 3781635141 is about 61495.0009431661. Note that the first 3 decimals coincide. The cubic root of 3781635141 is about 1557.9728135192.

The spelling of 3781635141 in words is "three billion, seven hundred eighty-one million, six hundred thirty-five thousand, one hundred forty-one".