2061247349 has 4 divisors (see below), whose sum is σ = 2355711264. Its totient is φ = 1766783436.

The previous prime is 2061247343. The next prime is 2061247379. The reversal of 2061247349 is 9437421602.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2061247349 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 (2061247343) 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, 147231947 + ... + 147231960.

It is an arithmetic number, because the mean of its divisors is an integer number (588927816).

Almost surely, 2^2061247349 is an apocalyptic number.

It is an amenable number.

2061247349 is a deficient number, since it is larger than the sum of its proper divisors (294463915).

2061247349 is an equidigital number, since it uses as much as digits as its factorization.

2061247349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294463914.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 2061247349 is about 45400.9619832003. The cubic root of 2061247349 is about 1272.6530911493.

The spelling of 2061247349 in words is "two billion, sixty-one million, two hundred forty-seven thousand, three hundred forty-nine".