2154132511 has 2 divisors, whose sum is σ = 2154132512. Its totient is φ = 2154132510.

The previous prime is 2154132503. The next prime is 2154132517. The reversal of 2154132511 is 1152314512.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2154132511 - 2³ = 2154132503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2154132517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1077066255 + 1077066256.

It is an arithmetic number, because the mean of its divisors is an integer number (1077066256).

Almost surely, 2^2154132511 is an apocalyptic number.

2154132511 is a deficient number, since it is larger than the sum of its proper divisors (1).

2154132511 is an equidigital number, since it uses as much as digits as its factorization.

2154132511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1200, while the sum is 25.

The square root of 2154132511 is about 46412.6330970351. The cubic root of 2154132511 is about 1291.4892783347.

The spelling of 2154132511 in words is "two billion, one hundred fifty-four million, one hundred thirty-two thousand, five hundred eleven".