1220602039 has 2 divisors, whose sum is σ = 1220602040. Its totient is φ = 1220602038.

The previous prime is 1220602037. The next prime is 1220602049. The reversal of 1220602039 is 9302060221.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1220602039 - 2¹ = 1220602037 is a prime.

It is a super-2 number, since 2×1220602039² = 2979738675221915042, which contains 22 as substring.

Together with 1220602037, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220602037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610301019 + 610301020.

It is an arithmetic number, because the mean of its divisors is an integer number (610301020).

Almost surely, 2^1220602039 is an apocalyptic number.

1220602039 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220602039 is an equidigital number, since it uses as much as digits as its factorization.

1220602039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 1220602039 is about 34937.1154934119. The cubic root of 1220602039 is about 1068.7054653353.

The spelling of 1220602039 in words is "one billion, two hundred twenty million, six hundred two thousand, thirty-nine".