4320149 has 4 divisors (see below), whose sum is σ = 4368780. Its totient is φ = 4271520.

The previous prime is 4320119. The next prime is 4320187. The reversal of 4320149 is 9410234.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9410234 = 2 ⋅4705117.

It can be written as a sum of positive squares in 2 ways, for example, as 348100 + 3972049 = 590^2 + 1993^2 .

It is a cyclic number.

It is not a de Polignac number, because 4320149 - 2⁸ = 4319893 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 (4320109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24182 + ... + 24359.

It is an arithmetic number, because the mean of its divisors is an integer number (1092195).

Almost surely, 2^4320149 is an apocalyptic number.

It is an amenable number.

4320149 is a deficient number, since it is larger than the sum of its proper divisors (48631).

4320149 is an equidigital number, since it uses as much as digits as its factorization.

4320149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48630.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 4320149 is about 2078.4968126028. The cubic root of 4320149 is about 162.8669294197.

The spelling of 4320149 in words is "four million, three hundred twenty thousand, one hundred forty-nine".