1400017057 has 2 divisors, whose sum is σ = 1400017058. Its totient is φ = 1400017056.

The previous prime is 1400017049. The next prime is 1400017181. The reversal of 1400017057 is 7507100041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1346082721 + 53934336 = 36689^2 + 7344^2 .

It is a cyclic number.

It is not a de Polignac number, because 1400017057 - 2³ = 1400017049 is a prime.

It is not a weakly prime, because it can be changed into another prime (1400017457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700008528 + 700008529.

It is an arithmetic number, because the mean of its divisors is an integer number (700008529).

Almost surely, 2^1400017057 is an apocalyptic number.

It is an amenable number.

1400017057 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400017057 is an equidigital number, since it uses as much as digits as its factorization.

1400017057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 980, while the sum is 25.

The square root of 1400017057 is about 37416.8018007953. The cubic root of 1400017057 is about 1118.6934852718.

Adding to 1400017057 its reverse (7507100041), we get a palindrome (8907117098).

The spelling of 1400017057 in words is "one billion, four hundred million, seventeen thousand, fifty-seven".