1290822413 has 2 divisors, whose sum is σ = 1290822414. Its totient is φ = 1290822412.

The previous prime is 1290822409. The next prime is 1290822431. The reversal of 1290822413 is 3142280921.

Together with next prime (1290822431) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1277848009 + 12974404 = 35747^2 + 3602^2 .

It is a cyclic number.

It is not a de Polignac number, because 1290822413 - 2² = 1290822409 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1290822413.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1290822433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 645411206 + 645411207.

It is an arithmetic number, because the mean of its divisors is an integer number (645411207).

Almost surely, 2^1290822413 is an apocalyptic number.

It is an amenable number.

1290822413 is a deficient number, since it is larger than the sum of its proper divisors (1).

1290822413 is an equidigital number, since it uses as much as digits as its factorization.

1290822413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 1290822413 is about 35928.0171036477. The cubic root of 1290822413 is about 1088.8185197854.

The spelling of 1290822413 in words is "one billion, two hundred ninety million, eight hundred twenty-two thousand, four hundred thirteen".