1223136462 has 64 divisors (see below), whose sum is σ = 2566561536. Its totient is φ = 388281600.

The previous prime is 1223136443. The next prime is 1223136487. The reversal of 1223136462 is 2646313221.

1223136462 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1901913 + ... + 1902555.

It is an arithmetic number, because the mean of its divisors is an integer number (40102524).

Almost surely, 2^1223136462 is an apocalyptic number.

1223136462 is an abundant number, since it is smaller than the sum of its proper divisors (1343425074).

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

1223136462 is a wasteful number, since it uses less digits than its factorization.

1223136462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865.

The product of its digits is 10368, while the sum is 30.

The square root of 1223136462 is about 34973.3678961578. The cubic root of 1223136462 is about 1069.4446304171. Note that the first 3 decimals are identical.

Adding to 1223136462 its reverse (2646313221), we get a palindrome (3869449683).

The spelling of 1223136462 in words is "one billion, two hundred twenty-three million, one hundred thirty-six thousand, four hundred sixty-two".