1020614389 has 8 divisors (see below), whose sum is σ = 1028928600. Its totient is φ = 1012320000.

The previous prime is 1020614381. The next prime is 1020614407. The reversal of 1020614389 is 9834160201.

It can be written as a sum of positive squares in 4 ways, for example, as 131560900 + 889053489 = 11470^2 + 29817^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1020614389 - 2³ = 1020614381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020614381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108889 + ... + 117889.

It is an arithmetic number, because the mean of its divisors is an integer number (128616075).

Almost surely, 2^1020614389 is an apocalyptic number.

It is an amenable number.

1020614389 is a deficient number, since it is larger than the sum of its proper divisors (8314211).

1020614389 is an equidigital number, since it uses as much as digits as its factorization.

1020614389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9911.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 1020614389 is about 31947.0560302511. The cubic root of 1020614389 is about 1006.8247794252.

The spelling of 1020614389 in words is "one billion, twenty million, six hundred fourteen thousand, three hundred eighty-nine".