3730146521 has 2 divisors, whose sum is σ = 3730146522. Its totient is φ = 3730146520.

The previous prime is 3730146473. The next prime is 3730146559. The reversal of 3730146521 is 1256410373.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1927210000 + 1802936521 = 43900^2 + 42461^2 .

It is a cyclic number.

It is not a de Polignac number, because 3730146521 - 2⁶ = 3730146457 is a prime.

It is not a weakly prime, because it can be changed into another prime (3730146821) 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 as a sum of consecutive naturals, namely, 1865073260 + 1865073261.

It is an arithmetic number, because the mean of its divisors is an integer number (1865073261).

Almost surely, 2^3730146521 is an apocalyptic number.

It is an amenable number.

3730146521 is a deficient number, since it is larger than the sum of its proper divisors (1).

3730146521 is an equidigital number, since it uses as much as digits as its factorization.

3730146521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 3730146521 is about 61074.9254686406. The cubic root of 3730146521 is about 1550.8696501682.

Adding to 3730146521 its reverse (1256410373), we get a palindrome (4986556894).

The spelling of 3730146521 in words is "three billion, seven hundred thirty million, one hundred forty-six thousand, five hundred twenty-one".