1954730629 has 2 divisors, whose sum is σ = 1954730630. Its totient is φ = 1954730628.

The previous prime is 1954730627. The next prime is 1954730741. The reversal of 1954730629 is 9260374591.

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., 1650228129 + 304502500 = 40623^2 + 17450^2 .

It is a cyclic number.

It is not a de Polignac number, because 1954730629 - 2¹ = 1954730627 is a prime.

Together with 1954730627, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1954730627) 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, 977365314 + 977365315.

It is an arithmetic number, because the mean of its divisors is an integer number (977365315).

Almost surely, 2^1954730629 is an apocalyptic number.

It is an amenable number.

1954730629 is a deficient number, since it is larger than the sum of its proper divisors (1).

1954730629 is an equidigital number, since it uses as much as digits as its factorization.

1954730629 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 408240, while the sum is 46.

The square root of 1954730629 is about 44212.3357107493. The cubic root of 1954730629 is about 1250.3424403658.

It can be divided in two parts, 19547 and 30629, that added together give a square (50176 = 224²).

The spelling of 1954730629 in words is "one billion, nine hundred fifty-four million, seven hundred thirty thousand, six hundred twenty-nine".