1220377713 has 8 divisors (see below), whose sum is σ = 1679659776. Its totient is φ = 787340400.

The previous prime is 1220377703. The next prime is 1220377747. The reversal of 1220377713 is 3177730221.

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

It is not a de Polignac number, because 1220377713 - 2¹² = 1220373617 is a prime.

It is a super-3 number, since 3×1220377713³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (1220377703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6561078 + ... + 6561263.

It is an arithmetic number, because the mean of its divisors is an integer number (209957472).

Almost surely, 2^1220377713 is an apocalyptic number.

It is an amenable number.

1220377713 is a deficient number, since it is larger than the sum of its proper divisors (459282063).

1220377713 is a wasteful number, since it uses less digits than its factorization.

1220377713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13122375.

The product of its (nonzero) digits is 12348, while the sum is 33.

The square root of 1220377713 is about 34933.9049205782. The cubic root of 1220377713 is about 1068.6399913308.

The spelling of 1220377713 in words is "one billion, two hundred twenty million, three hundred seventy-seven thousand, seven hundred thirteen".