3781450741 has 2 divisors, whose sum is σ = 3781450742. Its totient is φ = 3781450740.

The previous prime is 3781450691. The next prime is 3781450859. The reversal of 3781450741 is 1470541873.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2408748241 + 1372702500 = 49079^2 + 37050^2 .

It is a cyclic number.

It is not a de Polignac number, because 3781450741 - 2¹⁹ = 3780926453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3781450694 and 3781450703.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3781450441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1890725370 + 1890725371.

It is an arithmetic number, because the mean of its divisors is an integer number (1890725371).

Almost surely, 2^3781450741 is an apocalyptic number.

It is an amenable number.

3781450741 is a deficient number, since it is larger than the sum of its proper divisors (1).

3781450741 is an equidigital number, since it uses as much as digits as its factorization.

3781450741 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 3781450741 is about 61493.5016160244. The cubic root of 3781450741 is about 1557.9474898302.

The spelling of 3781450741 in words is "three billion, seven hundred eighty-one million, four hundred fifty thousand, seven hundred forty-one".