4152749 has 4 divisors (see below), whose sum is σ = 4158336. Its totient is φ = 4147164.

The previous prime is 4152737. The next prime is 4152761. The reversal of 4152749 is 9472514.

It is a happy number.

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: 9472514 = 2 ⋅4736257.

It is an interprime number because it is at equal distance from previous prime (4152737) and next prime (4152761).

It is a cyclic number.

It is not a de Polignac number, because 4152749 - 2²⁰ = 3104173 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4157749) 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, 1469 + ... + 3234.

It is an arithmetic number, because the mean of its divisors is an integer number (1039584).

Almost surely, 2^4152749 is an apocalyptic number.

It is an amenable number.

4152749 is a deficient number, since it is larger than the sum of its proper divisors (5587).

4152749 is an equidigital number, since it uses as much as digits as its factorization.

4152749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5586.

The product of its digits is 10080, while the sum is 32.

The square root of 4152749 is about 2037.8294825623. The cubic root of 4152749 is about 160.7355327865.

The spelling of 4152749 in words is "four million, one hundred fifty-two thousand, seven hundred forty-nine".