1125352549 has 4 divisors (see below), whose sum is σ = 1126783264. Its totient is φ = 1123921836.

The previous prime is 1125352531. The next prime is 1125352561. The reversal of 1125352549 is 9452535211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1125352549 - 2⁹ = 1125352037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125355549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 714177 + ... + 715750.

It is an arithmetic number, because the mean of its divisors is an integer number (281695816).

Almost surely, 2^1125352549 is an apocalyptic number.

It is an amenable number.

1125352549 is a deficient number, since it is larger than the sum of its proper divisors (1430715).

1125352549 is an equidigital number, since it uses as much as digits as its factorization.

1125352549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1430714.

The product of its digits is 54000, while the sum is 37.

The square root of 1125352549 is about 33546.2747410201. The cubic root of 1125352549 is about 1040.1505418788.

The spelling of 1125352549 in words is "one billion, one hundred twenty-five million, three hundred fifty-two thousand, five hundred forty-nine".