3661400143 has 8 divisors (see below), whose sum is σ = 3912345360. Its totient is φ = 3414407040.

The previous prime is 3661400137. The next prime is 3661400147. The reversal of 3661400143 is 3410041663.

3661400143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3661400143 - 2¹⁷ = 3661269071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3661400147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 986113 + ... + 989818.

It is an arithmetic number, because the mean of its divisors is an integer number (489043170).

Almost surely, 2^3661400143 is an apocalyptic number.

3661400143 is a deficient number, since it is larger than the sum of its proper divisors (250945217).

3661400143 is a wasteful number, since it uses less digits than its factorization.

3661400143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1976057.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 3661400143 is about 60509.5045674644. The cubic root of 3661400143 is about 1541.2830347367.

The spelling of 3661400143 in words is "three billion, six hundred sixty-one million, four hundred thousand, one hundred forty-three".