1200940057 has 2 divisors, whose sum is σ = 1200940058. Its totient is φ = 1200940056.

The previous prime is 1200940051. The next prime is 1200940133. The reversal of 1200940057 is 7500490021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1058591296 + 142348761 = 32536^2 + 11931^2 .

It is a cyclic number.

It is not a de Polignac number, because 1200940057 - 2¹¹ = 1200938009 is a prime.

It is not a weakly prime, because it can be changed into another prime (1200940051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600470028 + 600470029.

It is an arithmetic number, because the mean of its divisors is an integer number (600470029).

Almost surely, 2^1200940057 is an apocalyptic number.

It is an amenable number.

1200940057 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200940057 is an equidigital number, since it uses as much as digits as its factorization.

1200940057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 1200940057 is about 34654.5820491317. The cubic root of 1200940057 is about 1062.9359855395.

The spelling of 1200940057 in words is "one billion, two hundred million, nine hundred forty thousand, fifty-seven".