1220514136 has 16 divisors (see below), whose sum is σ = 2387962800. Its totient is φ = 583724064.

The previous prime is 1220514131. The next prime is 1220514151. The reversal of 1220514136 is 6314150221.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1220514136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220514131) 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, 3316431 + ... + 3316798.

It is an arithmetic number, because the mean of its divisors is an integer number (149247675).

Almost surely, 2^1220514136 is an apocalyptic number.

It is an amenable number.

1220514136 is a deficient number, since it is larger than the sum of its proper divisors (1167448664).

1220514136 is a wasteful number, since it uses less digits than its factorization.

1220514136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6633258 (or 6633254 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 1220514136 is about 34935.8574533387. The cubic root of 1220514136 is about 1068.6798100525.

Adding to 1220514136 its reverse (6314150221), we get a palindrome (7534664357).

The spelling of 1220514136 in words is "one billion, two hundred twenty million, five hundred fourteen thousand, one hundred thirty-six".