214045749 has 6 divisors (see below), whose sum is σ = 309177206. Its totient is φ = 142697160.

The previous prime is 214045739. The next prime is 214045813. The reversal of 214045749 is 947540412.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 129276900 + 84768849 = 11370^2 + 9207^2 .

It is not a de Polignac number, because 214045749 - 2⁵ = 214045717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214045739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11891422 + ... + 11891439.

Almost surely, 2^214045749 is an apocalyptic number.

It is an amenable number.

214045749 is a deficient number, since it is larger than the sum of its proper divisors (95131457).

214045749 is a wasteful number, since it uses less digits than its factorization.

214045749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23782867 (or 23782864 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 214045749 is about 14630.3024233951. The cubic root of 214045749 is about 598.1850236372.

The spelling of 214045749 in words is "two hundred fourteen million, forty-five thousand, seven hundred forty-nine".