1293894001 has 2 divisors, whose sum is σ = 1293894002. Its totient is φ = 1293894000.

The previous prime is 1293893981. The next prime is 1293894047. The reversal of 1293894001 is 1004983921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 815159601 + 478734400 = 28551^2 + 21880^2 .

It is an emirp because it is prime and its reverse (1004983921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1293894001 - 2¹¹ = 1293891953 is a prime.

It is not a weakly prime, because it can be changed into another prime (1293894061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 646947000 + 646947001.

It is an arithmetic number, because the mean of its divisors is an integer number (646947001).

Almost surely, 2^1293894001 is an apocalyptic number.

It is an amenable number.

1293894001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1293894001 is an equidigital number, since it uses as much as digits as its factorization.

1293894001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 1293894001 is about 35970.7381214231. The cubic root of 1293894001 is about 1089.6814716093.

The spelling of 1293894001 in words is "one billion, two hundred ninety-three million, eight hundred ninety-four thousand, one".