9129457 has 2 divisors, whose sum is σ = 9129458. Its totient is φ = 9129456.

The previous prime is 9129437. The next prime is 9129473. The reversal of 9129457 is 7549219.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6806881 + 2322576 = 2609^2 + 1524^2 .

It is a cyclic number.

It is not a de Polignac number, because 9129457 - 2¹⁹ = 8605169 is a prime.

It is a super-2 number, since 2×9129457² = 166693970229698, which contains 22 as substring.

It is an Ulam number.

9129457 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (9129437) 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, 4564728 + 4564729.

It is an arithmetic number, because the mean of its divisors is an integer number (4564729).

Almost surely, 2^9129457 is an apocalyptic number.

It is an amenable number.

9129457 is a deficient number, since it is larger than the sum of its proper divisors (1).

9129457 is an equidigital number, since it uses as much as digits as its factorization.

9129457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22680, while the sum is 37.

The square root of 9129457 is about 3021.4991312261. The cubic root of 9129457 is about 209.0009767740. Note that the first 3 decimals are identical.

The spelling of 9129457 in words is "nine million, one hundred twenty-nine thousand, four hundred fifty-seven".