1011052549 has 16 divisors (see below), whose sum is σ = 1139065200. Its totient is φ = 890942976.

The previous prime is 1011052531. The next prime is 1011052571. The reversal of 1011052549 is 9452501101.

It can be written as a sum of positive squares in 8 ways, for example, as 189943524 + 821109025 = 13782^2 + 28655^2 .

It is a cyclic number.

It is not a de Polignac number, because 1011052549 - 2⁵ = 1011052517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011052589) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18487 + ... + 48619.

It is an arithmetic number, because the mean of its divisors is an integer number (71191575).

Almost surely, 2^1011052549 is an apocalyptic number.

It is an amenable number.

1011052549 is a deficient number, since it is larger than the sum of its proper divisors (128012651).

1011052549 is a wasteful number, since it uses less digits than its factorization.

1011052549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30264.

The product of its (nonzero) digits is 1800, while the sum is 28.

The square root of 1011052549 is about 31797.0525206347. The cubic root of 1011052549 is about 1003.6706925301.

The spelling of 1011052549 in words is "one billion, eleven million, fifty-two thousand, five hundred forty-nine".