1457806897 has 2 divisors, whose sum is σ = 1457806898. Its totient is φ = 1457806896.

The previous prime is 1457806879. The next prime is 1457806913. The reversal of 1457806897 is 7986087541.

Together with previous prime (1457806879) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1116629056 + 341177841 = 33416^2 + 18471^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1457806897 is a prime.

It is not a weakly prime, because it can be changed into another prime (1457806877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 728903448 + 728903449.

It is an arithmetic number, because the mean of its divisors is an integer number (728903449).

Almost surely, 2^1457806897 is an apocalyptic number.

It is an amenable number.

1457806897 is a deficient number, since it is larger than the sum of its proper divisors (1).

1457806897 is an equidigital number, since it uses as much as digits as its factorization.

1457806897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3386880, while the sum is 55.

The square root of 1457806897 is about 38181.2374995887. The cubic root of 1457806897 is about 1133.8788820913.

The spelling of 1457806897 in words is "one billion, four hundred fifty-seven million, eight hundred six thousand, eight hundred ninety-seven".