1213617424 has 10 divisors (see below), whose sum is σ = 2351383790. Its totient is φ = 606808704.

The previous prime is 1213617397. The next prime is 1213617467. The reversal of 1213617424 is 4247163121.

It can be written as a sum of positive squares in only one way, i.e., 977687824 + 235929600 = 31268^2 + 15360^2 .

It is a super-3 number, since 3×1213617424³ (a number of 28 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37925529 + ... + 37925560.

It is an arithmetic number, because the mean of its divisors is an integer number (235138379).

Almost surely, 2^1213617424 is an apocalyptic number.

It is an amenable number.

1213617424 is a deficient number, since it is larger than the sum of its proper divisors (1137766366).

1213617424 is an equidigital number, since it uses as much as digits as its factorization.

1213617424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75851097 (or 75851091 counting only the distinct ones).

The product of its digits is 8064, while the sum is 31.

The square root of 1213617424 is about 34837.0122714334. The cubic root of 1213617424 is about 1066.6630907866.

The spelling of 1213617424 in words is "one billion, two hundred thirteen million, six hundred seventeen thousand, four hundred twenty-four".