1919528953 has 2 divisors, whose sum is σ = 1919528954. Its totient is φ = 1919528952.

The previous prime is 1919528929. The next prime is 1919528969. The reversal of 1919528953 is 3598259191.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1875929344 + 43599609 = 43312^2 + 6603^2 .

It is a cyclic number.

It is not a de Polignac number, because 1919528953 - 2²¹ = 1917431801 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1919528953.

It is not a weakly prime, because it can be changed into another prime (1919528993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 959764476 + 959764477.

It is an arithmetic number, because the mean of its divisors is an integer number (959764477).

Almost surely, 2^1919528953 is an apocalyptic number.

It is an amenable number.

1919528953 is a deficient number, since it is larger than the sum of its proper divisors (1).

1919528953 is an equidigital number, since it uses as much as digits as its factorization.

1919528953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 874800, while the sum is 52.

The square root of 1919528953 is about 43812.4292067902. The cubic root of 1919528953 is about 1242.7913515300.

The spelling of 1919528953 in words is "one billion, nine hundred nineteen million, five hundred twenty-eight thousand, nine hundred fifty-three".