11457109 has 2 divisors, whose sum is σ = 11457110. Its totient is φ = 11457108.

The previous prime is 11457041. The next prime is 11457157. The reversal of 11457109 is 90175411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11410884 + 46225 = 3378^2 + 215^2 .

It is a cyclic number.

It is not a de Polignac number, because 11457109 - 2¹¹ = 11455061 is a prime.

It is a Chen prime.

It is equal to p₇₅₄₆₄₂ and since 11457109 and 754642 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11457709) 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, 5728554 + 5728555.

It is an arithmetic number, because the mean of its divisors is an integer number (5728555).

Almost surely, 2^11457109 is an apocalyptic number.

It is an amenable number.

11457109 is a deficient number, since it is larger than the sum of its proper divisors (1).

11457109 is an equidigital number, since it uses as much as digits as its factorization.

11457109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 28.

The square root of 11457109 is about 3384.8351510820. The cubic root of 11457109 is about 225.4369057981.

The spelling of 11457109 in words is "eleven million, four hundred fifty-seven thousand, one hundred nine".