1223510252 has 6 divisors (see below), whose sum is σ = 2141142948. Its totient is φ = 611755124.

The previous prime is 1223510237. The next prime is 1223510257. The reversal of 1223510252 is 2520153221.

It is not an unprimeable number, because it can be changed into a prime (1223510257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152938778 + ... + 152938785.

It is an arithmetic number, because the mean of its divisors is an integer number (356857158).

Almost surely, 2^1223510252 is an apocalyptic number.

It is an amenable number.

1223510252 is a deficient number, since it is larger than the sum of its proper divisors (917632696).

1223510252 is a wasteful number, since it uses less digits than its factorization.

1223510252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305877567 (or 305877565 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 1223510252 is about 34978.7114113713. The cubic root of 1223510252 is about 1069.5535599348.

Adding to 1223510252 its reverse (2520153221), we get a palindrome (3743663473).

The spelling of 1223510252 in words is "one billion, two hundred twenty-three million, five hundred ten thousand, two hundred fifty-two".