4145949 has 12 divisors (see below), whose sum is σ = 6049212. Its totient is φ = 2736000.

The previous prime is 4145891. The next prime is 4145951. The reversal of 4145949 is 9495414.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2913849 + 1232100 = 1707^2 + 1110^2 .

It is not a de Polignac number, because 4145949 - 2⁸ = 4145693 is a prime.

It is a super-2 number, since 2×4145949² = 34377786221202, which contains 22 as substring.

4145949 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4145959) 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 in 11 ways as a sum of consecutive naturals, for example, 1372 + ... + 3189.

It is an arithmetic number, because the mean of its divisors is an integer number (504101).

Almost surely, 2^4145949 is an apocalyptic number.

It is an amenable number.

4145949 is a deficient number, since it is larger than the sum of its proper divisors (1903263).

4145949 is a wasteful number, since it uses less digits than its factorization.

4145949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4668 (or 4665 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 4145949 is about 2036.1603571428. The cubic root of 4145949 is about 160.6477516763.

The spelling of 4145949 in words is "four million, one hundred forty-five thousand, nine hundred forty-nine".