4523149 has 2 divisors, whose sum is σ = 4523150. Its totient is φ = 4523148.

The previous prime is 4523147. The next prime is 4523171. The reversal of 4523149 is 9413254.

4523149 = T₁₇₃₅ + T₁₇₃₆ + T₁₇₃₇.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4141225 + 381924 = 2035^2 + 618^2 .

It is a cyclic number.

It is not a de Polignac number, because 4523149 - 2¹ = 4523147 is a prime.

Together with 4523147, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4523147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2261574 + 2261575.

It is an arithmetic number, because the mean of its divisors is an integer number (2261575).

Almost surely, 2^4523149 is an apocalyptic number.

4523149 is the 1737-th centered triangular number.

It is an amenable number.

4523149 is a deficient number, since it is larger than the sum of its proper divisors (1).

4523149 is an equidigital number, since it uses as much as digits as its factorization.

4523149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 28.

The square root of 4523149 is about 2126.7696161080. The cubic root of 4523149 is about 165.3789758474.

The spelling of 4523149 in words is "four million, five hundred twenty-three thousand, one hundred forty-nine".