2054691157 has 2 divisors, whose sum is σ = 2054691158. Its totient is φ = 2054691156.

The previous prime is 2054691143. The next prime is 2054691167. The reversal of 2054691157 is 7511964502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1443316081 + 611375076 = 37991^2 + 24726^2 .

It is a cyclic number.

It is not a de Polignac number, because 2054691157 - 2⁷ = 2054691029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2054691127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1027345578 + 1027345579.

It is an arithmetic number, because the mean of its divisors is an integer number (1027345579).

Almost surely, 2^2054691157 is an apocalyptic number.

It is an amenable number.

2054691157 is a deficient number, since it is larger than the sum of its proper divisors (1).

2054691157 is an equidigital number, since it uses as much as digits as its factorization.

2054691157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 75600, while the sum is 40.

The square root of 2054691157 is about 45328.7012498704. The cubic root of 2054691157 is about 1271.3023524019.

The spelling of 2054691157 in words is "two billion, fifty-four million, six hundred ninety-one thousand, one hundred fifty-seven".