1457142440057 has 2 divisors, whose sum is σ = 1457142440058. Its totient is φ = 1457142440056.

The previous prime is 1457142440051. The next prime is 1457142440147. The reversal of 1457142440057 is 7500442417541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1396204555321 + 60937884736 = 1181611^2 + 246856^2 .

It is a cyclic number.

It is not a de Polignac number, because 1457142440057 - 2¹⁴ = 1457142423673 is a prime.

It is not a weakly prime, because it can be changed into another prime (1457142440051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 728571220028 + 728571220029.

It is an arithmetic number, because the mean of its divisors is an integer number (728571220029).

Almost surely, 2^{1457142440057} is an apocalyptic number.

It is an amenable number.

1457142440057 is a deficient number, since it is larger than the sum of its proper divisors (1).

1457142440057 is an equidigital number, since it uses as much as digits as its factorization.

1457142440057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 627200, while the sum is 44.

Adding to 1457142440057 its reverse (7500442417541), we get a palindrome (8957584857598).

The spelling of 1457142440057 in words is "one trillion, four hundred fifty-seven billion, one hundred forty-two million, four hundred forty thousand, fifty-seven".