1835838157 has 2 divisors, whose sum is σ = 1835838158. Its totient is φ = 1835838156.

The previous prime is 1835838133. The next prime is 1835838161. The reversal of 1835838157 is 7518385381.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1741476361 + 94361796 = 41731^2 + 9714^2 .

It is a cyclic number.

It is not a de Polignac number, because 1835838157 - 2⁷ = 1835838029 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1835838157.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1835833157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 917919078 + 917919079.

It is an arithmetic number, because the mean of its divisors is an integer number (917919079).

Almost surely, 2^1835838157 is an apocalyptic number.

It is an amenable number.

1835838157 is a deficient number, since it is larger than the sum of its proper divisors (1).

1835838157 is an equidigital number, since it uses as much as digits as its factorization.

1835838157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 806400, while the sum is 49.

The square root of 1835838157 is about 42846.6819835562. The cubic root of 1835838157 is about 1224.4605498172.

The spelling of 1835838157 in words is "one billion, eight hundred thirty-five million, eight hundred thirty-eight thousand, one hundred fifty-seven".