1290870479 has 2 divisors, whose sum is σ = 1290870480. Its totient is φ = 1290870478.

The previous prime is 1290870457. The next prime is 1290870509. The reversal of 1290870479 is 9740780921.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1290870479 - 2¹² = 1290866383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1290870409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 645435239 + 645435240.

It is an arithmetic number, because the mean of its divisors is an integer number (645435240).

Almost surely, 2^1290870479 is an apocalyptic number.

1290870479 is a deficient number, since it is larger than the sum of its proper divisors (1).

1290870479 is an equidigital number, since it uses as much as digits as its factorization.

1290870479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 254016, while the sum is 47.

The square root of 1290870479 is about 35928.6860182779. The cubic root of 1290870479 is about 1088.8320342964.

The spelling of 1290870479 in words is "one billion, two hundred ninety million, eight hundred seventy thousand, four hundred seventy-nine".