1223107452 has 84 divisors (see below), whose sum is σ = 3667705776. Its totient is φ = 349453440.

The previous prime is 1223107427. The next prime is 1223107453. The reversal of 1223107452 is 2547013221.

It is a tau number, because it is divible by the number of its divisors (84).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223107453) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 9549 + ... + 50372.

It is an arithmetic number, because the mean of its divisors is an integer number (43663164).

Almost surely, 2^1223107452 is an apocalyptic number.

1223107452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1223107452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1833852888).

1223107452 is an abundant number, since it is smaller than the sum of its proper divisors (2444598324).

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

1223107452 is an equidigital number, since it uses as much as digits as its factorization.

1223107452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59950 (or 59933 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 1223107452 is about 34972.9531495411. The cubic root of 1223107452 is about 1069.4361754232.

The spelling of 1223107452 in words is "one billion, two hundred twenty-three million, one hundred seven thousand, four hundred fifty-two".