1853349137 has 2 divisors, whose sum is σ = 1853349138. Its totient is φ = 1853349136.

The previous prime is 1853349119. The next prime is 1853349181. The reversal of 1853349137 is 7319433581.

It is an a-pointer prime, because the next prime (1853349181) can be obtained adding 1853349137 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1520688016 + 332661121 = 38996^2 + 18239^2 .

It is a cyclic number.

It is not a de Polignac number, because 1853349137 - 2⁸ = 1853348881 is a prime.

It is not a weakly prime, because it can be changed into another prime (1853349187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 926674568 + 926674569.

It is an arithmetic number, because the mean of its divisors is an integer number (926674569).

Almost surely, 2^1853349137 is an apocalyptic number.

It is an amenable number.

1853349137 is a deficient number, since it is larger than the sum of its proper divisors (1).

1853349137 is an equidigital number, since it uses as much as digits as its factorization.

1853349137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 272160, while the sum is 44.

The square root of 1853349137 is about 43050.5416574519. The cubic root of 1853349137 is about 1228.3413731275.

The spelling of 1853349137 in words is "one billion, eight hundred fifty-three million, three hundred forty-nine thousand, one hundred thirty-seven".