1245523222 has 8 divisors (see below), whose sum is σ = 1870096536. Its totient is φ = 622157712.

The previous prime is 1245523183. The next prime is 1245523229. The reversal of 1245523222 is 2223255421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1245523222² = 3102656193082522568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245523229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 299368 + ... + 303499.

It is an arithmetic number, because the mean of its divisors is an integer number (233762067).

Almost surely, 2^1245523222 is an apocalyptic number.

1245523222 is a deficient number, since it is larger than the sum of its proper divisors (624573314).

1245523222 is a wasteful number, since it uses less digits than its factorization.

1245523222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603902.

The product of its digits is 9600, while the sum is 28.

The square root of 1245523222 is about 35291.9710699190. The cubic root of 1245523222 is about 1075.9298166197.

Adding to 1245523222 its reverse (2223255421), we get a palindrome (3468778643).

The spelling of 1245523222 in words is "one billion, two hundred forty-five million, five hundred twenty-three thousand, two hundred twenty-two".