601611749 has 4 divisors (see below), whose sum is σ = 617871564. Its totient is φ = 585351936.

The previous prime is 601611743. The next prime is 601611809. The reversal of 601611749 is 947116106.

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 579942724 + 21669025 = 24082^2 + 4655^2 .

It is a cyclic number.

It is not a de Polignac number, because 601611749 - 2⁴ = 601611733 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 (601611743) 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, 8129852 + ... + 8129925.

It is an arithmetic number, because the mean of its divisors is an integer number (154467891).

Almost surely, 2^601611749 is an apocalyptic number.

It is an amenable number.

601611749 is a deficient number, since it is larger than the sum of its proper divisors (16259815).

601611749 is a wasteful number, since it uses less digits than its factorization.

601611749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16259814.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 601611749 is about 24527.7750519691. The cubic root of 601611749 is about 844.1872132673.

The spelling of 601611749 in words is "six hundred one million, six hundred eleven thousand, seven hundred forty-nine".