1302991093 has 2 divisors, whose sum is σ = 1302991094. Its totient is φ = 1302991092.

The previous prime is 1302991091. The next prime is 1302991121. The reversal of 1302991093 is 3901992031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1168477489 + 134513604 = 34183^2 + 11598^2 .

It is a cyclic number.

It is not a de Polignac number, because 1302991093 - 2¹ = 1302991091 is a prime.

Together with 1302991091, 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 (1302991091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 651495546 + 651495547.

It is an arithmetic number, because the mean of its divisors is an integer number (651495547).

Almost surely, 2^1302991093 is an apocalyptic number.

It is an amenable number.

1302991093 is a deficient number, since it is larger than the sum of its proper divisors (1).

1302991093 is an equidigital number, since it uses as much as digits as its factorization.

1302991093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13122, while the sum is 37.

The square root of 1302991093 is about 36096.9679197575. The cubic root of 1302991093 is about 1092.2292823284.

The spelling of 1302991093 in words is "one billion, three hundred two million, nine hundred ninety-one thousand, ninety-three".