1124205551 has 16 divisors (see below), whose sum is σ = 1315611648. Its totient is φ = 940766400.

The previous prime is 1124205541. The next prime is 1124205559. The reversal of 1124205551 is 1555024211.

It is not a de Polignac number, because 1124205551 - 2¹⁸ = 1123943407 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1124205551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1124205559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40211 + ... + 62171.

It is an arithmetic number, because the mean of its divisors is an integer number (82225728).

Almost surely, 2^1124205551 is an apocalyptic number.

1124205551 is a deficient number, since it is larger than the sum of its proper divisors (191406097).

1124205551 is a wasteful number, since it uses less digits than its factorization.

1124205551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22142.

The product of its (nonzero) digits is 2000, while the sum is 26.

The square root of 1124205551 is about 33529.1746244968. The cubic root of 1124205551 is about 1039.7970360213.

Adding to 1124205551 its reverse (1555024211), we get a palindrome (2679229762).

The spelling of 1124205551 in words is "one billion, one hundred twenty-four million, two hundred five thousand, five hundred fifty-one".