1224513140 has 48 divisors (see below), whose sum is σ = 2752747200. Its totient is φ = 456152832.

The previous prime is 1224513097. The next prime is 1224513161. The reversal of 1224513140 is 413154221.

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, 4889 + ... + 49728.

It is an arithmetic number, because the mean of its divisors is an integer number (57348900).

Almost surely, 2^1224513140 is an apocalyptic number.

1224513140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1224513140 is an abundant number, since it is smaller than the sum of its proper divisors (1528234060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1224513140 is a wasteful number, since it uses less digits than its factorization.

1224513140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54704 (or 54702 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1224513140 is about 34993.0441659482. The cubic root of 1224513140 is about 1069.8457110051.

Adding to 1224513140 its reverse (413154221), we get a palindrome (1637667361).

The spelling of 1224513140 in words is "one billion, two hundred twenty-four million, five hundred thirteen thousand, one hundred forty".