1949125559 has 2 divisors, whose sum is σ = 1949125560. Its totient is φ = 1949125558.

The previous prime is 1949125517. The next prime is 1949125567. The reversal of 1949125559 is 9555219491.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1949125559 - 2¹⁶ = 1949060023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1949125159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 974562779 + 974562780.

It is an arithmetic number, because the mean of its divisors is an integer number (974562780).

Almost surely, 2^1949125559 is an apocalyptic number.

1949125559 is a deficient number, since it is larger than the sum of its proper divisors (1).

1949125559 is an equidigital number, since it uses as much as digits as its factorization.

1949125559 is an evil number, because the sum of its binary digits is even.

The product of its digits is 729000, while the sum is 50.

The square root of 1949125559 is about 44148.9021267800. The cubic root of 1949125559 is about 1249.1462028772.

The spelling of 1949125559 in words is "one billion, nine hundred forty-nine million, one hundred twenty-five thousand, five hundred fifty-nine".