1220130487 has 2 divisors, whose sum is σ = 1220130488. Its totient is φ = 1220130486.

The previous prime is 1220130407. The next prime is 1220130539. The reversal of 1220130487 is 7840310221.

It is a strong prime.

It is an emirp because it is prime and its reverse (7840310221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1220130487 - 2²³ = 1211741879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220130407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610065243 + 610065244.

It is an arithmetic number, because the mean of its divisors is an integer number (610065244).

Almost surely, 2^1220130487 is an apocalyptic number.

1220130487 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220130487 is an equidigital number, since it uses as much as digits as its factorization.

1220130487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 1220130487 is about 34930.3662591734. The cubic root of 1220130487 is about 1068.5678242112.

The spelling of 1220130487 in words is "one billion, two hundred twenty million, one hundred thirty thousand, four hundred eighty-seven".