1224520152 has 64 divisors (see below), whose sum is σ = 3097543680. Its totient is φ = 403372032.

The previous prime is 1224520147. The next prime is 1224520201. The reversal of 1224520152 is 2510254221.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 772753 + ... + 774335.

It is an arithmetic number, because the mean of its divisors is an integer number (48399120).

Almost surely, 2^1224520152 is an apocalyptic number.

1224520152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1224520152 is an abundant number, since it is smaller than the sum of its proper divisors (1873023528).

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

1224520152 is a wasteful number, since it uses less digits than its factorization.

1224520152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1952 (or 1948 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 1224520152 is about 34993.1443571452. The cubic root of 1224520152 is about 1069.8477531076.

Adding to 1224520152 its reverse (2510254221), we get a palindrome (3734774373).

The spelling of 1224520152 in words is "one billion, two hundred twenty-four million, five hundred twenty thousand, one hundred fifty-two".