1834047157 has 2 divisors, whose sum is σ = 1834047158. Its totient is φ = 1834047156.

The previous prime is 1834047121. The next prime is 1834047161. The reversal of 1834047157 is 7517404381.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1577598961 + 256448196 = 39719^2 + 16014^2 .

It is a cyclic number.

It is not a de Polignac number, because 1834047157 - 2²⁷ = 1699829429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1834047107) 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, 917023578 + 917023579.

It is an arithmetic number, because the mean of its divisors is an integer number (917023579).

Almost surely, 2^1834047157 is an apocalyptic number.

It is an amenable number.

1834047157 is a deficient number, since it is larger than the sum of its proper divisors (1).

1834047157 is an equidigital number, since it uses as much as digits as its factorization.

1834047157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 1834047157 is about 42825.7767822138. The cubic root of 1834047157 is about 1224.0622354065.

The spelling of 1834047157 in words is "one billion, eight hundred thirty-four million, forty-seven thousand, one hundred fifty-seven".