4157149 has 4 divisors (see below), whose sum is σ = 4219264. Its totient is φ = 4095036.

The previous prime is 4157147. The next prime is 4157159. The reversal of 4157149 is 9417514.

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: 9417514 = 2 ⋅4708757.

It is a cyclic number.

It is not a de Polignac number, because 4157149 - 2¹ = 4157147 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4157149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4157141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30957 + ... + 31090.

It is an arithmetic number, because the mean of its divisors is an integer number (1054816).

Almost surely, 2^4157149 is an apocalyptic number.

It is an amenable number.

4157149 is a deficient number, since it is larger than the sum of its proper divisors (62115).

4157149 is an equidigital number, since it uses as much as digits as its factorization.

4157149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62114.

The product of its digits is 5040, while the sum is 31.

The square root of 4157149 is about 2038.9087767725. The cubic root of 4157149 is about 160.7922812768.

The spelling of 4157149 in words is "four million, one hundred fifty-seven thousand, one hundred forty-nine".