1011788245 has 16 divisors (see below), whose sum is σ = 1310868720. Its totient is φ = 745265664.

The previous prime is 1011788231. The next prime is 1011788263. The reversal of 1011788245 is 5428871101.

It can be written as a sum of positive squares in 8 ways, for example, as 12659364 + 999128881 = 3558^2 + 31609^2 .

It is not a de Polignac number, because 1011788245 - 2⁵ = 1011788213 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6201 + ... + 45409.

It is an arithmetic number, because the mean of its divisors is an integer number (81929295).

Almost surely, 2^1011788245 is an apocalyptic number.

It is an amenable number.

1011788245 is a deficient number, since it is larger than the sum of its proper divisors (299080475).

1011788245 is a wasteful number, since it uses less digits than its factorization.

1011788245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39624.

The product of its (nonzero) digits is 17920, while the sum is 37.

The square root of 1011788245 is about 31808.6190363555. The cubic root of 1011788245 is about 1003.9140750288.

The spelling of 1011788245 in words is "one billion, eleven million, seven hundred eighty-eight thousand, two hundred forty-five".