2920134649 has 4 divisors (see below), whose sum is σ = 2920677760. Its totient is φ = 2919591540.

The previous prime is 2920134619. The next prime is 2920134661. The reversal of 2920134649 is 9464310292.

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 not a de Polignac number, because 2920134649 - 2⁵ = 2920134617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2920134619) 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, 263409 + ... + 274270.

It is an arithmetic number, because the mean of its divisors is an integer number (730169440).

Almost surely, 2^2920134649 is an apocalyptic number.

It is an amenable number.

2920134649 is a deficient number, since it is larger than the sum of its proper divisors (543111).

2920134649 is an equidigital number, since it uses as much as digits as its factorization.

2920134649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543110.

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 2920134649 is about 54038.2702258316. The cubic root of 2920134649 is about 1429.3358692526.

The spelling of 2920134649 in words is "two billion, nine hundred twenty million, one hundred thirty-four thousand, six hundred forty-nine".