1042091657 has 2 divisors, whose sum is σ = 1042091658. Its totient is φ = 1042091656.

The previous prime is 1042091641. The next prime is 1042091663. The reversal of 1042091657 is 7561902401.

1042091657 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 946423696 + 95667961 = 30764^2 + 9781^2 .

It is a cyclic number.

It is not a de Polignac number, because 1042091657 - 2⁴ = 1042091641 is a prime.

It is not a weakly prime, because it can be changed into another prime (1042094657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521045828 + 521045829.

It is an arithmetic number, because the mean of its divisors is an integer number (521045829).

Almost surely, 2^1042091657 is an apocalyptic number.

It is an amenable number.

1042091657 is a deficient number, since it is larger than the sum of its proper divisors (1).

1042091657 is an equidigital number, since it uses as much as digits as its factorization.

1042091657 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 1042091657 is about 32281.4444689205. Note that the first 4 decimals coincide. The cubic root of 1042091657 is about 1013.8381739608.

The spelling of 1042091657 in words is "one billion, forty-two million, ninety-one thousand, six hundred fifty-seven".