2403149 has 4 divisors (see below), whose sum is σ = 2746464. Its totient is φ = 2059836.

The previous prime is 2403131. The next prime is 2403161. The reversal of 2403149 is 9413042.

2403149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9413042 = 2 ⋅4706521.

It is a cyclic number.

It is not a de Polignac number, because 2403149 - 2¹⁶ = 2337613 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2403119) 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 3 ways as a sum of consecutive naturals, for example, 171647 + ... + 171660.

It is an arithmetic number, because the mean of its divisors is an integer number (686616).

2^2403149 is an apocalyptic number.

It is an amenable number.

2403149 is a deficient number, since it is larger than the sum of its proper divisors (343315).

2403149 is an equidigital number, since it uses as much as digits as its factorization.

2403149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343314.

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

The square root of 2403149 is about 1550.2093407021. The cubic root of 2403149 is about 133.9451212124.

It can be divided in two parts, 2403 and 149, that added together give a palindrome (2552).

The spelling of 2403149 in words is "two million, four hundred three thousand, one hundred forty-nine".