2120146577 has 4 divisors (see below), whose sum is σ = 2131860276. Its totient is φ = 2108432880.

The previous prime is 2120146571. The next prime is 2120146591. The reversal of 2120146577 is 7756410212.

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 128845201 + 1991301376 = 11351^2 + 44624^2 .

It is a cyclic number.

It is not a de Polignac number, because 2120146577 - 2⁸ = 2120146321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120146571) 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, 5856578 + ... + 5856939.

It is an arithmetic number, because the mean of its divisors is an integer number (532965069).

Almost surely, 2^2120146577 is an apocalyptic number.

It is an amenable number.

2120146577 is a deficient number, since it is larger than the sum of its proper divisors (11713699).

2120146577 is a wasteful number, since it uses less digits than its factorization.

2120146577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11713698.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 2120146577 is about 46045.0494298790. The cubic root of 2120146577 is about 1284.6612635482.

Adding to 2120146577 its reverse (7756410212), we get a palindrome (9876556789).

The spelling of 2120146577 in words is "two billion, one hundred twenty million, one hundred forty-six thousand, five hundred seventy-seven".