4153949 has 4 divisors (see below), whose sum is σ = 4162620. Its totient is φ = 4145280.

The previous prime is 4153943. The next prime is 4153973. The reversal of 4153949 is 9493514.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2502724 + 1651225 = 1582^2 + 1285^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4153949 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 (4153943) 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, 3572 + ... + 4589.

It is an arithmetic number, because the mean of its divisors is an integer number (1040655).

Almost surely, 2^4153949 is an apocalyptic number.

It is an amenable number.

4153949 is a deficient number, since it is larger than the sum of its proper divisors (8671).

4153949 is an equidigital number, since it uses as much as digits as its factorization.

4153949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8670.

The product of its digits is 19440, while the sum is 35.

The square root of 4153949 is about 2038.1238922107. The cubic root of 4153949 is about 160.7510136212.

The spelling of 4153949 in words is "four million, one hundred fifty-three thousand, nine hundred forty-nine".