1312153224 has 64 divisors (see below), whose sum is σ = 3518251200. Its totient is φ = 406538496.

The previous prime is 1312153207. The next prime is 1312153229. The reversal of 1312153224 is 4223512131.

1312153224 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 1312153194 and 1312153203.

It is not an unprimeable number, because it can be changed into a prime (1312153229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2979 + ... + 51314.

It is an arithmetic number, because the mean of its divisors is an integer number (54972675).

Almost surely, 2^1312153224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1312153224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1759125600).

1312153224 is an abundant number, since it is smaller than the sum of its proper divisors (2206097976).

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

1312153224 is a wasteful number, since it uses less digits than its factorization.

1312153224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54374 (or 54370 counting only the distinct ones).

The product of its digits is 1440, while the sum is 24.

The square root of 1312153224 is about 36223.6555858185. The cubic root of 1312153224 is about 1094.7833503115.

Adding to 1312153224 its reverse (4223512131), we get a palindrome (5535665355).

The spelling of 1312153224 in words is "one billion, three hundred twelve million, one hundred fifty-three thousand, two hundred twenty-four".