1011425249 has 2 divisors, whose sum is σ = 1011425250. Its totient is φ = 1011425248.

The previous prime is 1011425221. The next prime is 1011425263. The reversal of 1011425249 is 9425241101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1009968400 + 1456849 = 31780^2 + 1207^2 .

It is an emirp because it is prime and its reverse (9425241101) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1011425249 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1011425449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505712624 + 505712625.

It is an arithmetic number, because the mean of its divisors is an integer number (505712625).

Almost surely, 2^1011425249 is an apocalyptic number.

It is an amenable number.

1011425249 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011425249 is an equidigital number, since it uses as much as digits as its factorization.

1011425249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 1011425249 is about 31802.9125867427. The cubic root of 1011425249 is about 1003.7940036653.

The spelling of 1011425249 in words is "one billion, eleven million, four hundred twenty-five thousand, two hundred forty-nine".