1120438639 has 2 divisors, whose sum is σ = 1120438640. Its totient is φ = 1120438638.

The previous prime is 1120438637. The next prime is 1120438681. The reversal of 1120438639 is 9368340211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1120438639 - 2¹ = 1120438637 is a prime.

It is a super-3 number, since 3×1120438639³ (a number of 28 digits) contains 333 as substring.

Together with 1120438637, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1120438598 and 1120438607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1120438637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560219319 + 560219320.

It is an arithmetic number, because the mean of its divisors is an integer number (560219320).

Almost surely, 2^1120438639 is an apocalyptic number.

1120438639 is a deficient number, since it is larger than the sum of its proper divisors (1).

1120438639 is an equidigital number, since it uses as much as digits as its factorization.

1120438639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 1120438639 is about 33472.9538433643. The cubic root of 1120438639 is about 1038.6343759147.

The spelling of 1120438639 in words is "one billion, one hundred twenty million, four hundred thirty-eight thousand, six hundred thirty-nine".