1224130245 has 16 divisors (see below), whose sum is σ = 2109270912. Its totient is φ = 602648640.

The previous prime is 1224130217. The next prime is 1224130253. The reversal of 1224130245 is 5420314221.

1224130245 = 381² + 382² + ... + 1550².

It is not a de Polignac number, because 1224130245 - 2⁵ = 1224130213 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3138601 + ... + 3138990.

It is an arithmetic number, because the mean of its divisors is an integer number (131829432).

Almost surely, 2^1224130245 is an apocalyptic number.

1224130245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1224130245 is a deficient number, since it is larger than the sum of its proper divisors (885140667).

1224130245 is a wasteful number, since it uses less digits than its factorization.

1224130245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6277612.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 1224130245 is about 34987.5727223253. The cubic root of 1224130245 is about 1069.7341887834.

Adding to 1224130245 its reverse (5420314221), we get a palindrome (6644444466).

It can be divided in two parts, 12241 and 30245, that added together give a triangular number (42486 = T₂₉₁).

The spelling of 1224130245 in words is "one billion, two hundred twenty-four million, one hundred thirty thousand, two hundred forty-five".