3491948129 has 2 divisors, whose sum is σ = 3491948130. Its totient is φ = 3491948128.

The previous prime is 3491948093. The next prime is 3491948177. The reversal of 3491948129 is 9218491943.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2884227025 + 607721104 = 53705^2 + 24652^2 .

It is an emirp because it is prime and its reverse (9218491943) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3491948129 - 2¹⁶ = 3491882593 is a prime.

It is not a weakly prime, because it can be changed into another prime (3491948729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1745974064 + 1745974065.

It is an arithmetic number, because the mean of its divisors is an integer number (1745974065).

Almost surely, 2^3491948129 is an apocalyptic number.

It is an amenable number.

3491948129 is a deficient number, since it is larger than the sum of its proper divisors (1).

3491948129 is an equidigital number, since it uses as much as digits as its factorization.

3491948129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 559872, while the sum is 50.

The square root of 3491948129 is about 59092.7079173057. The cubic root of 3491948129 is about 1517.1292956422.

The spelling of 3491948129 in words is "three billion, four hundred ninety-one million, nine hundred forty-eight thousand, one hundred twenty-nine".