2154240511 has 2 divisors, whose sum is σ = 2154240512. Its totient is φ = 2154240510.

The previous prime is 2154240503. The next prime is 2154240547. The reversal of 2154240511 is 1150424512.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2154240511 - 2³ = 2154240503 is a prime.

It is a super-2 number, since 2×2154240511² = 9281504358467082242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2154240551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1077120255 + 1077120256.

It is an arithmetic number, because the mean of its divisors is an integer number (1077120256).

Almost surely, 2^2154240511 is an apocalyptic number.

2154240511 is a deficient number, since it is larger than the sum of its proper divisors (1).

2154240511 is an equidigital number, since it uses as much as digits as its factorization.

2154240511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 2154240511 is about 46413.7965587820. The cubic root of 2154240511 is about 1291.5108614253.

The spelling of 2154240511 in words is "two billion, one hundred fifty-four million, two hundred forty thousand, five hundred eleven".