1019952497 has 2 divisors, whose sum is σ = 1019952498. Its totient is φ = 1019952496.

The previous prime is 1019952473. The next prime is 1019952517. The reversal of 1019952497 is 7942599101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 902641936 + 117310561 = 30044^2 + 10831^2 .

It is a cyclic number.

It is not a de Polignac number, because 1019952497 - 2¹⁶ = 1019886961 is a prime.

It is a super-2 number, since 2×1019952497² = 2080606192273070018, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1019982497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 509976248 + 509976249.

It is an arithmetic number, because the mean of its divisors is an integer number (509976249).

Almost surely, 2^1019952497 is an apocalyptic number.

It is an amenable number.

1019952497 is a deficient number, since it is larger than the sum of its proper divisors (1).

1019952497 is an equidigital number, since it uses as much as digits as its factorization.

1019952497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 204120, while the sum is 47.

The square root of 1019952497 is about 31936.6951483713. The cubic root of 1019952497 is about 1006.6070826513.

The spelling of 1019952497 in words is "one billion, nineteen million, nine hundred fifty-two thousand, four hundred ninety-seven".