2154634147 has 2 divisors, whose sum is σ = 2154634148. Its totient is φ = 2154634146.

The previous prime is 2154634123. The next prime is 2154634151. The reversal of 2154634147 is 7414364512.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2154634147 - 2¹¹ = 2154632099 is a prime.

It is not a weakly prime, because it can be changed into another prime (2154634117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1077317073 + 1077317074.

It is an arithmetic number, because the mean of its divisors is an integer number (1077317074).

Almost surely, 2^2154634147 is an apocalyptic number.

2154634147 is a deficient number, since it is larger than the sum of its proper divisors (1).

2154634147 is an equidigital number, since it uses as much as digits as its factorization.

2154634147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 37.

The square root of 2154634147 is about 46418.0368714576. The cubic root of 2154634147 is about 1291.5895208886.

Adding to 2154634147 its reverse (7414364512), we get a palindrome (9568998659).

The spelling of 2154634147 in words is "two billion, one hundred fifty-four million, six hundred thirty-four thousand, one hundred forty-seven".