4149469 has 2 divisors, whose sum is σ = 4149470. Its totient is φ = 4149468.

The previous prime is 4149451. The next prime is 4149493. The reversal of 4149469 is 9649414.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4149369 + 100 = 2037^2 + 10^2 .

It is a cyclic number.

It is not a de Polignac number, because 4149469 - 2⁵ = 4149437 is a prime.

It is a super-2 number, since 2×4149469² = 34436185963922, which contains 22 as substring.

4149469 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4141469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2074734 + 2074735.

It is an arithmetic number, because the mean of its divisors is an integer number (2074735).

Almost surely, 2^4149469 is an apocalyptic number.

It is an amenable number.

4149469 is a deficient number, since it is larger than the sum of its proper divisors (1).

4149469 is an equidigital number, since it uses as much as digits as its factorization.

4149469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 37.

The square root of 4149469 is about 2037.0245457529. The cubic root of 4149469 is about 160.6932032827.

Subtracting 4149469 from its reverse (9649414), we obtain a palindrome (5499945).

The spelling of 4149469 in words is "four million, one hundred forty-nine thousand, four hundred sixty-nine".