1830361157 has 2 divisors, whose sum is σ = 1830361158. Its totient is φ = 1830361156.

The previous prime is 1830361139. The next prime is 1830361207. The reversal of 1830361157 is 7511630381.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1823802436 + 6558721 = 42706^2 + 2561^2 .

It is a cyclic number.

It is not a de Polignac number, because 1830361157 - 2¹⁸ = 1830099013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1830361657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 915180578 + 915180579.

It is an arithmetic number, because the mean of its divisors is an integer number (915180579).

Almost surely, 2^1830361157 is an apocalyptic number.

It is an amenable number.

1830361157 is a deficient number, since it is larger than the sum of its proper divisors (1).

1830361157 is an equidigital number, since it uses as much as digits as its factorization.

1830361157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 1830361157 is about 42782.7203085545. The cubic root of 1830361157 is about 1223.2416604695.

The spelling of 1830361157 in words is "one billion, eight hundred thirty million, three hundred sixty-one thousand, one hundred fifty-seven".