1393012057 has 2 divisors, whose sum is σ = 1393012058. Its totient is φ = 1393012056.

The previous prime is 1393012031. The next prime is 1393012121. The reversal of 1393012057 is 7502103931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1384137616 + 8874441 = 37204^2 + 2979^2 .

It is a cyclic number.

It is not a de Polignac number, because 1393012057 - 2¹⁹ = 1392487769 is a prime.

It is not a weakly prime, because it can be changed into another prime (1393019057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 696506028 + 696506029.

It is an arithmetic number, because the mean of its divisors is an integer number (696506029).

Almost surely, 2^1393012057 is an apocalyptic number.

It is an amenable number.

1393012057 is a deficient number, since it is larger than the sum of its proper divisors (1).

1393012057 is an equidigital number, since it uses as much as digits as its factorization.

1393012057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 1393012057 is about 37323.0767354461. The cubic root of 1393012057 is about 1116.8245665579.

Adding to 1393012057 its reverse (7502103931), we get a palindrome (8895115988).

The spelling of 1393012057 in words is "one billion, three hundred ninety-three million, twelve thousand, fifty-seven".