1124212145 has 12 divisors (see below), whose sum is σ = 1569308724. Its totient is φ = 770888160.

The previous prime is 1124212109. The next prime is 1124212163. The reversal of 1124212145 is 5412124211.

It can be written as a sum of positive squares in 2 ways, for example, as 123565456 + 1000646689 = 11116^2 + 31633^2 .

It is not a de Polignac number, because 1124212145 - 2⁸ = 1124211889 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 1124212145.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2294066 + ... + 2294555.

It is an arithmetic number, because the mean of its divisors is an integer number (130775727).

Almost surely, 2^1124212145 is an apocalyptic number.

It is an amenable number.

1124212145 is a deficient number, since it is larger than the sum of its proper divisors (445096579).

1124212145 is an equidigital number, since it uses as much as digits as its factorization.

1124212145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4588640 (or 4588633 counting only the distinct ones).

The product of its digits is 640, while the sum is 23.

The square root of 1124212145 is about 33529.2729566270. The cubic root of 1124212145 is about 1039.7990689853.

Adding to 1124212145 its reverse (5412124211), we get a palindrome (6536336356).

The spelling of 1124212145 in words is "one billion, one hundred twenty-four million, two hundred twelve thousand, one hundred forty-five".